Ship and Boat Propulsion Components - United States (US)

Federal Supply Class (FSC): 2010

NATO Supply Classification Class (NSC): 2010

Federal Supply Group (FSG): 20 Ship and Marine Equipment

NATO Supply Classification Group (NSG): 20 Ship and Marine Equipment

Items Managed by United States (US) - NCB is 00 to 09

Page 7 of 28

NSN Format for Ship and Boat Propulsion Components
Codified by United States

201001XXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN

NATO Supply Class 2010 refers to Ship And Boat Propulsion Components, which falls under NATO Supply Group 20 for Ship And Marine Equipment. This classification system is used by NATO (North Atlantic Treaty Organization) to categorize and standardize various supplies and equipment used by member countries.

Ship And Boat Propulsion Components include a wide range of items that are essential for the propulsion systems of ships and boats. This can include engines, turbines, propellers, propulsion control systems, fuel systems, cooling systems, and other related components.

The purpose of this classification system is to facilitate the procurement and logistics processes within NATO member countries. By categorizing items into specific supply classes and groups, it becomes easier to identify, track, and manage the inventory of ship and marine equipment.

NATO Supply Class 2010 is specifically dedicated to Ship And Boat Propulsion Components, ensuring that these critical components are properly classified and managed. This classification helps in streamlining the procurement process, ensuring that the right components are acquired for the maintenance, repair, and operation of ships and boats.

By using the NATO Supply Class 2010 for Ship And Boat Propulsion Components, member countries can effectively communicate and coordinate their procurement efforts, ensuring interoperability and compatibility among different naval forces. This classification system also helps in standardizing the specifications and requirements for ship and boat propulsion components, promoting efficiency and cost-effectiveness in the procurement process.

In summary, NATO Supply Class 2010 for Ship And Boat Propulsion Components in NATO Supply Group 20 for Ship And Marine Equipment is a classification system used by NATO to categorize and manage the procurement of essential components for the propulsion systems of ships and boats.

FSC 2010 Ship and Boat Propulsion Components - United States (US)
FSC 2010 Ship and Boat Propulsion Components - United States (US)

Includes Propulsion Shafts; Ship Proppellers. Marine Transmissions, Reverse and Reduction Gear Type.

Excludes Engines (FSC 2810, 2815); Turbines (FSC 2825, 2835, 2840).

Frequently Asked Questions(FAQ) for Federal Supply Class 2010 Frequently Asked Questions(FAQ) for Federal Supply Class 2010

What is Federal Supply Class 2010?
FSC 2010 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 2010) in the USA for supply items codified in the category of Ship and Boat Propulsion Components.
What is NATO Supply Classification Class 2010?
NSC 2010 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 2010 in the USA) for supply items codified in the category of Ship and Boat Propulsion Components.
Which Federal Supply Group is FSC 2010 in?
FSC 2010 is in Federal Supply Group (FSG) 20 which contains Ship and Marine Equipment.
Which NATO Supply Classification Group is NSC 2010 in?
NSC 2010 is in NATO Supply Classification Group (NSG) 20 which contains Ship and Marine Equipment.

Supply Items Included in Federal Supply Class 2010 Supply Items Included in Federal Supply Class 2010

What is a Ship Propulsion Shaft? 646 Items
A Ship Propulsion Shaft (SHAFT,PROPULSION,SHIP) is a shaft used to transmit to the propeller the torque generated by the main engine of a ship and also to transfer the propeller thrust to the thrust block.
What is a Controllable Pitch Propellers Servo Control? 14 Items
A Controllable Pitch Propellers Servo Control (CONTROL,SERVO,CONTROLLABLE PITCH PROPELLERS) is a control unit designed for use with marine controllable pitch propellers to position the valve side of the main servomotor valve.
What is a Ship Propulsion Shaft Sleeve? 127 Items
A Ship Propulsion Shaft Sleeve (SLEEVE,PROPULSION SHAFT,SHIP) is a tubular part installed over the periphery of ship's main propulsion shafts which are exposed to salt water, i.e., propeller shafts intermediate shafts and stern tube shafts, in order to provide a bearing surface in way of water-lubricated stern tube and strut bearings.
What is an Outboard Propelling Unit? 69 Items
An Outboard Propelling Unit (PROPELLING UNIT,OUTBOARD) is a heavy duty motive power device designed for permanent deck mounting upon heavy watercraft. The device consists essentially of an internal combustion power unit connected to an independently rotated and tilted outboard drive assembly. Excludes OUTBOARD MOTOR, GASOLINE.
What is a Ship Propeller Blade? 95 Items
A Ship Propeller Blade (BLADE,PROPELLER,SHIP) is a hydrofoil, which is the thrust producing and major torque absorbing component of a ship propeller. It is provided with a suitable root section for assembly in a ship propeller hub. The hydrofoil section may be either helicoidal shaped radially disposed (variable pitch type), or straight faced (constant pitch type).
What is a Ship Propeller Hub? 73 Items
A Ship Propeller Hub (HUB,PROPELLER,SHIP) is a hub upon which ship propeller blades are installed to construct a PROPELLER, SHIP.
What is a Fairwater Cap? 90 Items
A Fairwater Cap (CAP,FAIRWATER) is an item, generally conical-shaped, used for streamline fairing the afterend of a ship propeller, a shaft bearing strut or shaft flanges. It diminishes the occurrence of eddies through on- and off- flowing water. The device can have a thread or screws for mounting.
What is a Marine Propeller? 961 Items
A Marine Propeller (PROPELLER,MARINE) is a propeller with two or more radial blades, designed to rotate and provide thrust for waterborne vessel or self-propelled underwater devices. It may be of solid or built-up construction; controllable, adjustable or fixed pitch design.
Parts Kit,Mechanical Transmission 12 Items
What is a Marine Propeller Shaft Assembly? 39 Items
A Marine Propeller Shaft Assembly (PROPELLER SHAFT ASSEMBLY,MARINE) is an item consisting essentially of the shaft, the shaft bearing, the propeller and the pertinent monitoring equipment. May also include the control facility for controllable-pitch propellers. It is used to transmit the torque produced by the propulsion system and to impart propulsion to the watercraft.
What is a Marine Propeller Blade Parts Kit? 12 Items
A Marine Propeller Blade Parts Kit (PARTS KIT,PROPELLER BLADE,MARINE) is a parts kit consisting of propeller blades and the pertinent seals and mounting elements.
What is a Stave Shaped Bearing? 164 Items
A Stave Shaped Bearing (BEARING,STAVE SHAPED) is a bonded synthetic rubber item used as a water lubricated bearing in stern-tubes or struts for supporting a rotating propulsion shaft for waterccraft.
Plate,Leveling 48 Items
What is a Watercraft Propeller Adjusting Rod? 10 Items
A Watercraft Propeller Adjusting Rod (ADJUSTING ROD,PROPELLER,WATERCRAFT) is a rigid item made of metal and mounted in the propulsion shaft of a watercraft, the adjusting rod is used to alter the pitch of the propeller blades of an adjustable propeller.
What is a Coupling Housing? 16 Items
A Coupling Housing (HOUSING,COUPLING) is an item fabricated from a single internally cored casting, or composed of two or more separate pieces and designed to support and protect the components of a coupling. Includes items having access hole(s) to facilitate machining and assembling of components. It may include the access hole cover.
Control Circuit,Engine Propulsion 23 Items
Liner,Seal,Propeller 32 Items
What is a Ship Propulsion Shaft Thrust Bearing Unit? 40 Items
A Ship Propulsion Shaft Thrust Bearing Unit (BEARING UNIT,THRUST,PROPULSION SHAFT,SHIP) is a collection of items essentially consisting of a bearing housing, a thrust shaft, tilting shoes and bearing and lubricating oil cooling facilities together with the requisite fittings. It is used to transmit torque to the propeller.
What is a Ship Propulsion Shaft Flange? 24 Items
A Ship Propulsion Shaft Flange (FLANGE,PROPULSION SHAFT,SHIP) is a cylindrical item with or without threads. It may have holes for connecting bolts. The various propulsion shaft components are coupled to one another by means of this item.
What is a Ship Shaft Log Parts Kit? 10 Items
A Ship Shaft Log Parts Kit (PARTS KIT,SHAFT LOG,SHIP) is a parts kit essentially consisting of seal assembly and shaft log wear items such as sealing rings, hose springs and the like.
What is a Ship Propeller Nut? 52 Items
A Ship Propeller Nut (NUT,PROPELLER,SHIP) is an item of different shapes that may be internally threaded through a part of its length or through its entire length. It may have wrenching facilities such as flats, holes or slots. The item may also have bores in the periphery for locking purposes. It is used for mounting a propeller on a ship's propeller shaft.
What is a Marine Propeller Bushing? 29 Items
A Marine Propeller Bushing (BUSHING,PROPELLER,MARINE) is a cylindrical item used for mounting a propeller on the propulsion shaft or used as a guide bushing for a propeller pitch mechanism.
What is a Ship Propulsion Shaft System? 14 Items
A Ship Propulsion Shaft System (SHAFT SYSTEM,PROPULSION,SHIP) is a collection of items consisting of intermediate shafts, shaft bearings, a stern tube, bulkhead fittings and an anticorrosive system. The item is an integral part of a ship's power transmission system.
What is a Stave Shaped Bearing Stave? 29 Items
A Stave Shaped Bearing Stave (STAVE,BEARING,STAVE SHAPED) is an item made of laminated synthetic rubber or lignum vitae. It is part of a STAVE SET, BEARING, STAVE SHAPED with water lubricating a rotating drive shaft of watercraft in the shaft tube and the shaft dock.
What is a Stave Shaped Bearing Stave Set? 20 Items
A Stave Shaped Bearing Stave Set (STAVE SET,BEARING,STAVE SHAPED) is collection of STAVE, BEARING, STAVE SHAPED designed to be mounted on a BEARING, STAVE SHAPED.
What is a Ship Propeller Parts Kit? 44 Items
A Ship Propeller Parts Kit (PARTS KIT,PROPELLER,SHIP) is a group of parts not all having the same basic name. It is used for the replacement of worn or damaged parts and may include such items as propeller blades, seals, O-rings, slide rings and bearings.
Modification Kit,Ship And Boat Propulsion Components 13 Items
What is a Mechanical Transmission Housing Part? 13 Items
A Mechanical Transmission Housing Part (HOUSING PART,TRANSMISSION,MECHANICAL) is a rigid item of different shapes which, together with at least one further housing part, forms a HOUSING (2), TRANSMISSION, MECHANICAL.
What is a Mechanical Transmission Housing? 15 Items
A Mechanical Transmission Housing (HOUSING,TRANSMISSION,MECHANICAL) is a usually multisectional housing which is designed to accommodate and hold in position the components of a TRANSMISSION, MECHANICAL.
What is an Outboard Motor Tilt Assembly? 34 Items
An Outboard Motor Tilt Assembly (TILT ASSEMBLY,OUTBOARD MOTOR) is a device composed of numerous items such as hydraulic cylinder(s), hose(s), bracket(s), electric motor and the like. Designed to attach to an outboard motor to raise and/or lower the propeller from/into the water.
What is a Dual Master Control Head? 22 Items
A Dual Master Control Head (CONTROL HEAD,DUAL MASTER) is a unit with solo rack and pinion control dual head. Unit has four ports with which control cables connect. Two controls will be routed to the port and starboard engine room transfer units, while the other two will be routed to the open bridge station starboard station. The connection between control head and control cable is accomplished by a simple quick disconnect fitting.
What is a Crank Ring? 20 Items
A Crank Ring (RING,CRANK) is an item which is an internal part of a controllable pitch propeller hub assembly. It is attached internally to the cross head assembly and externally to the propeller blade. It is used to pivot the propeller blades
What is a Ship Propeller Hub Assembly? 15 Items
A Ship Propeller Hub Assembly (HUB ASSEMBLY,PROPELLER,SHIP) is an item which consists of the hub, cover, propeller shaft, and other related components.
What is a Propeller Hub Seal Ring? 47 Items
A Propeller Hub Seal Ring (SEAL RING,HUB,PROPELLER) is a metallic circular item designed to be installed in the hub body/blade seal area. It is grooved to accommodate o-rings. It seals in the propeller hub operating oil while preventing outside contaminates from entering the system.
What is a Shaft Seal Interlayer? 23 Items
A Shaft Seal Interlayer (SEAL INTERLAYER,SHAFT) is an item fabricated from rubber or synthetic rubber, reinforced with cotton, designed to protect the stern shaft.
What is a Rudder Tube And Shaft Assembly? 10 Items
A Rudder Tube And Shaft Assembly (TUBE AND SHAFT ASSEMBLY,RUDDER) is a component of the rudder control system which consists of a tubular housing and rudder stock (shaft). The item may also include hardware items such as bearings, bushings, machine keys, woodruff keys, and the like.
What is a Bearing And Shaft Assembly? 76 Items
A Bearing And Shaft Assembly is an item consisting of a shaft and assembled bearings together with bearing fasteners used to transmit power or motion through rotation.
What is a Marine Mechanical Transmission? 106 Items
A Marine Mechanical Transmission (TRANSMISSION,MECHANICAL,MARINE) is a marine device designed to increase, decrease, and/or reverse the rotation between the drive and driven shaft or shafts. It may or may not include the shifting control mechanism which changes ratios and/or direction of rotation. Excludes TRANSMISSION,CROSS-DRIVE and transmissions with controlled differentials.
What is a Marine Propeller Protector? 10 Items
A Marine Propeller Protector (PROTECTOR,PROPELLER,MARINE) is a rigid item designed to protect a PROPELLER, MARINE from possible damage and/or divers from injury.
What is a Pneumatic Control Head Assembly? 14 Items
A Pneumatic Control Head Assembly (CONTROL HEAD ASSEMBLY,PNEUMATIC) is a lever operated pneumatic control valve that provides two pilot air signals for direction control, and a variable pressure signal, proportional to lever position, for speed control.
What is an Engine Control Unit? 58 Items
An Engine Control Unit is a device that consists of push-pull cables operated by hand levers to control engine speed, clutch position and the like in a propulsion control system.
What is a Speed Controller? 20 Items
A Speed Controller (CONTROLLER,SPEED) is a mechanism used as a part of the main propulsion control which prevents throttle movement by increasing speed until the hydraulic clutch is fully engaged.
What is a Mechanical Seal Seat? 41 Items
A Mechanical Seal Seat (SEAT,MECHANICAL SEAL) is an item designed to accommodate a seal. It positions the seal, but does not encase it.
What is a Mechanical Drive Housing? 40 Items
A Mechanical Drive Housing (HOUSING,MECHANICAL DRIVE) is an item fabricated from a single, internally cored casting, or composed of two or more separate castings, and designed to position and protect bearings, shafts, gears, and/or other components required for a mechanical drive. Includes items having access hole(s) to facilitate machining and assembling of components. It may include the access hole cover plate(s).
What is a Marine Bow Thruster? 13 Items
A Marine Bow Thruster (THRUSTER,BOW,MARINE) is a horizontal mounted propeller with two or more blades, designed to rotate and provide thrust for waterborne vessels. The water is sucked up from under eath the vessel. The vessel is maneuvered by means of a 360 degrees rotating deflector, which turns the water 90 degrees and forces it through a tunnel. It may be a solid or built-up construction. Excludes PROPELLER,MARINE.

Stock Items From Supply Class 2010 Stock Items From Supply Class 2010 Page 7 of 28

005555559
1737508
RNCC: 3 | RNVC: 2
580-203-1737508
RNCC: 5 | RNVC: 2
005471268
C12687
RNCC: 3 | RNVC: 2
005459955
3249660
RNCC: 3 | RNVC: 2
B3249660PC1
RNCC: 5 | RNVC: 2
323B813
RNCC: 5 | RNVC: 2
005459967
3203750T03203753-3203747
RNCC: 3 | RNVC: 2
005459952
503214PC14T016-296-297
RNCC: 3 | RNVC: 2
3239404PC14T016-296-297
RNCC: 3 | RNVC: 2
005459960
3243047
RNCC: 3 | RNVC: 2
503239
RNCC: 5 | RNVC: 2
005459950
503214PC18-22-25-26-30AND503539-
RNCC: 3 | RNVC: 1
179666
RNCC: 5 | RNVC: 2
503539PC1T09
RNCC: 5 | RNVC: 2
3277942PC19T021
RNCC: 5 | RNVC: 2
005459954
503214PC14T016-296-298
RNCC: 3 | RNVC: 2
3239404PC14T016-296-298
RNCC: 3 | RNVC: 2
005459951
3239404PC13T016
RNCC: 3 | RNVC: 2
329404PC13T016
RNCC: 5 | RNVC: 2
503214PC13T016
RNCC: 5 | RNVC: 2
005459953
3239404PC12-14T016
RNCC: 3 | RNVC: 2
503214PC12-14T016
RNCC: 3 | RNVC: 2
503214PC12T016
RNCC: 5 | RNVC: 2
3239404PC12T016
RNCC: 5 | RNVC: 2
005459956
3249653PC9T013
RNCC: 3 | RNVC: 2
297C603PC9T013
RNCC: 5 | RNVC: 2
297C603PC9T013
RNCC: 5 | RNVC: 9
005408411
TAKD1S4400H1618332A
RNCC: 3 | RNVC: 1
005408408
TAK270-1-2S4400-1673749
RNCC: 3 | RNVC: 1
005408409
TAK270-1-2S4400-1673749
RNCC: 3 | RNVC: 1
005408410
TAKD1S4400H1618332A
RNCC: 3 | RNVC: 1
005365700
2303-09-12PC128
RNCC: 3 | RNVC: 2
BZ303-09-12PC128
RNCC: 3 | RNVC: 2
E2602E126-127
RNCC: 3 | RNVC: 2
E126-127
RNCC: 5 | RNVC: 2
005337834
3287155
RNCC: 3 | RNVC: 2
40171
RNCC: 5 | RNVC: 2
3287155REVC
RNCC: 5 | RNVC: 2
005337863
297C605-1
RNCC: 3 | RNVC: 2
3249655
RNCC: 3 | RNVC: 2
297C605
RNCC: 5 | RNVC: 2
297C605PC1
RNCC: 5 | RNVC: 2
C3249655REVCPC1
RNCC: 5 | RNVC: 2
297C605
RNCC: 5 | RNVC: 9
005337835
3241954
RNCC: 3 | RNVC: 2
409964
RNCC: 5 | RNVC: 2
005298624
YG22S44-1PC1
RNCC: 3 | RNVC: 2
YG22S44-1RH
RNCC: 5 | RNVC: 2
005297391
PCE854S4400-595383PC1
RNCC: 3 | RNVC: 2
005297387
PCE854S4400-595383PC2
RNCC: 3 | RNVC: 2
005248795
144-011
RNCC: 3 | RNVC: 2
005241398
CN2605ANDDN2604
RNCC: 3 | RNVC: 2
CN2605XDN2604
RNCC: 3 | RNVC: 2
CN2605XDN2604
RNCC: 3 | RNVC: 2
HN2501-248-250
RNCC: 5 | RNVC: 2
005169703
YT291S4400-451872PC1
RNCC: 3 | RNVC: 2
005169702
YT133S44-1PC1
RNCC: 3 | RNVC: 2
005169699
YSD33S44-46PC1
RNCC: 3 | RNVC: 2
YSD33S44-46RH
RNCC: 5 | RNVC: 2
005169696
YT225S44-1PC1
RNCC: 3 | RNVC: 2
YT225S44-1RH
RNCC: 5 | RNVC: 2
005169693
YMS1S44-1PC1
RNCC: 3 | RNVC: 2
LSM1S44-1
RNCC: 5 | RNVC: 2
005169694
YMS1S44-1PC2
RNCC: 3 | RNVC: 2
YMS1S44-1PC2-9
RNCC: 5 | RNVC: 2
005169692
YF270S44-1PC257LH
RNCC: 3 | RNVC: 2
YF270S44-1LH
RNCC: 5 | RNVC: 2
005169690
YF270S44-1PC257RH
RNCC: 3 | RNVC: 2
YF270S44-1RH
RNCC: 5 | RNVC: 2
005167993
Y065S44-6ALT1PC1
RNCC: 3 | RNVC: 2
005138468
12-3857-35
RNCC: 3 | RNVC: 2
463859PC35F042
RNCC: 3 | RNVC: 2
4302-3138050PC35T042
RNCC: 3 | RNVC: 2
463859PC35-42
RNCC: 5 | RNVC: 2
005138404
25-3803-45
RNCC: 3 | RNVC: 2
463806PC45-46
RNCC: 5 | RNVC: 2
3183068PC45-46
RNCC: 5 | RNVC: 2
005117301
F3199688DPC20
RNCC: 3 | RNVC: 2
463994PC20
RNCC: 5 | RNVC: 2
F3199688REVDPC20
RNCC: 5 | RNVC: 2
43-8-3994-20
RNCC: 5 | RNVC: 2
005071330
D3126460ANDD3126461
RNCC: 3 | RNVC: 2
005063112
271-4301-957863REVAPC4-5
RNCC: 3 | RNVC: 2
005061030
25-3803-61
RNCC: 3 | RNVC: 2
463807PC61T066
RNCC: 5 | RNVC: 2
3183069PC61T066
RNCC: 5 | RNVC: 2
004998561
465054REVA
RNCC: 3 | RNVC: 1
004991296
8784
RNCC: 3 | RNVC: 2
X8761APC8784
RNCC: 3 | RNVC: 2
9B638
RNCC: 3 | RNVC: 2
14627PC8784
RNCC: 3 | RNVC: 2
17652PC8784
RNCC: 3 | RNVC: 2
18317PC8784
RNCC: 3 | RNVC: 2
19400PC8784
RNCC: 3 | RNVC: 2
20681PC8784
RNCC: 3 | RNVC: 2
20682PC8784
RNCC: 3 | RNVC: 2
X8841APC8784
RNCC: 3 | RNVC: 2
004991303
N32250PC79
RNCC: 3 | RNVC: 2
9B620
RNCC: 3 | RNVC: 2
A5326
RNCC: 3 | RNVC: 2
87911S4105-441773PCA2000A
RNCC: 3 | RNVC: 2
S4105-441656PCA2000A
RNCC: 3 | RNVC: 2
N1062PCA2000A
RNCC: 3 | RNVC: 2
N32310PCA2000A
RNCC: 3 | RNVC: 2
004991306
A5340
RNCC: 3 | RNVC: 2
004991284
3F7231
RNCC: 3 | RNVC: 2
18317PCA3619
RNCC: 3 | RNVC: 2
A3619
RNCC: 3 | RNVC: 2
81831S4105-552754PCA3619
RNCC: 3 | RNVC: 2
20681PCA3619
RNCC: 3 | RNVC: 2
20682PCA3619
RNCC: 3 | RNVC: 2
SN5751PCA3619
RNCC: 3 | RNVC: 2
81831S4105-552755PCA3619
RNCC: 3 | RNVC: 2
17652PCA3619
RNCC: 3 | RNVC: 2
X8761APCA3619
RNCC: 3 | RNVC: 2
004946845
12328N
RNCC: 3 | RNVC: 2
28814N
RNCC: 3 | RNVC: 2
004913613
9351-8
RNCC: 3 | RNVC: 2
004909381
1547-2411A25
RNCC: 3 | RNVC: 9
004909382
48-36020A1
RNCC: 3 | RNVC: 9
004909377
B1547-2411A16
RNCC: 3 | RNVC: 9
004901252
H2666-54
RNCC: 3 | RNVC: 2
H2666PC54
RNCC: 5 | RNVC: 2
004805875
26X32X2RH3BLSS
RNCC: 3 | RNVC: 2
004780149
1941B
RNCC: 3 | RNVC: 2
004774205
26J425PC1-11-21
RNCC: 3 | RNVC: 2
004759671
906J683PC19
RNCC: 3 | RNVC: 2
906J683PC19
RNCC: 5 | RNVC: 2
906J683PC2T012
RNCC: 5 | RNVC: 2
906J683PC19
RNCC: 5 | RNVC: 9
004635099
23X26X2RH3BL
RNCC: 3 | RNVC: 2
004495360
41-5269-135B
RNCC: 3 | RNVC: 2
465270PC135B
RNCC: 5 | RNVC: 2
004495361
41-5269-135C
RNCC: 3 | RNVC: 2
465250PC135C
RNCC: 5 | RNVC: 2
004467565
W8118762R5F3ITEM1
RNCC: 3 | RNVC: 2
12-2723-2
RNCC: 5 | RNVC: 2
463561PC1T03
RNCC: 5 | RNVC: 2
004458692
74722
RNCC: 3 | RNVC: 2
580-203-1701469
RNCC: 5 | RNVC: 2
580-203-1701469PC3
RNCC: 5 | RNVC: 2