Bearings, Plain, Unmounted - United States (US)

Federal Supply Class (FSC): 3120

NATO Supply Classification Class (NSC): 3120

Federal Supply Group (FSG): 31 Bearings

NATO Supply Classification Group (NSG): 31 Bearings

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

Page 15 of 345

NSN Format for Bearings, Plain, Unmounted
Codified by United States

312001XXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN

NATO Supply Class 3120 refers to Bearings, Plain, Unmounted. This class is a part of NATO Supply Group 31, which is specifically dedicated to Bearings.

Bearings are mechanical components that are used to reduce friction between moving parts and support rotational or linear motion. They are commonly used in various industries such as automotive, aerospace, machinery, and more.

The NATO Supply Class 3120 includes plain bearings that are unmounted. Plain bearings, also known as sleeve bearings or bushings, are the simplest type of bearings. They consist of a cylindrical sleeve made of a low-friction material, such as bronze or plastic, which provides a smooth surface for the rotating shaft to slide against.

These unmounted plain bearings are typically used in applications where the shaft is stationary, and the bearing is mounted in a housing or support structure. They are designed to handle radial loads, which are forces acting perpendicular to the shaft's axis.

NATO Supply Class 3120 for Bearings, Plain, Unmounted encompasses a wide range of sizes, materials, and designs to accommodate different applications and operating conditions. It is important to select the appropriate bearing based on factors such as load capacity, speed, temperature, and environmental conditions.

When procuring bearings within this NATO Supply Class, it is essential to ensure compliance with NATO standards and specifications to maintain interoperability and compatibility within the NATO supply chain.

Overall, NATO Supply Class 3120 for Bearings, Plain, Unmounted plays a crucial role in the NATO Supply Group 31 for Bearings, providing the necessary components for various mechanical systems and equipment.

FSC 3120 Bearings, Plain, Unmounted - United States (US)
FSC 3120 Bearings, Plain, Unmounted - United States (US)

Includes Sleeve Bearings; Split Bearings; Washer Type Bearings; Jewel Bearings.

Excludes Antifriction Bearings (FSC 3110); Mounted Bearings (FSC 3130).

Note-All bearings, including specially designed, lubricated, and/or selected, are to be classified in the appropriate classes of this group. Bearings are parts that supports another part which rotates, slides, or oscillates in or on it.

Frequently Asked Questions(FAQ) for Federal Supply Class 3120 Frequently Asked Questions(FAQ) for Federal Supply Class 3120

What is Federal Supply Class 3120?
FSC 3120 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 3120) in the USA for supply items codified in the category of Bearings, Plain, Unmounted.
What is NATO Supply Classification Class 3120?
NSC 3120 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 3120 in the USA) for supply items codified in the category of Bearings, Plain, Unmounted.
Which Federal Supply Group is FSC 3120 in?
FSC 3120 is in Federal Supply Group (FSG) 31 which contains Bearings.
Which NATO Supply Classification Group is NSC 3120 in?
NSC 3120 is in NATO Supply Classification Group (NSG) 31 which contains Bearings.

Supply Items Included in Federal Supply Class 3120 Supply Items Included in Federal Supply Class 3120

What is a Spherical Plain Bearing? 1111 Items
A Spherical Plain Bearing (BEARING,PLAIN,SPHERICAL) is a detachable part in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. It may be divided into two or more segments of 180 degrees (3.141 radians) or less. The item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. Excludes BEARING, PLAIN, SELF-ALIGNING.
What is a Sleeve Bearing? 30069 Items
A Sleeve Bearing (BEARING,SLEEVE) is a tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also BUSHING, SLEEVE; SPACER, SLEEVE; and WASHER (as modified). Excludes PIN, HOLLOW.
What is a Sleeve Bushing? 47513 Items
A Sleeve Bushing (BUSHING,SLEEVE) is a tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see BUSHING, NONMETALLIC. See also BEARING, SLEEVE; BUSHING, TAPERED; SPACER, SLEEVE; INSULATOR, BUSHING; and BUSHING, ELECTRICAL CONDUCTOR. Excludes BUSHING, DRILL, JIG.
What is a Self-Aligning Plain Bearing? 2598 Items
A Self-Aligning Plain Bearing (BEARING,PLAIN,SELF-ALIGNING) is a detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes BEARING, PLAIN, ROD END and BEARING, PLAIN, SPHERICAL.
What is a Rod End Plain Bearing? 3410 Items
A Rod End Plain Bearing (BEARING,PLAIN,ROD END) is a detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The outer member of the assembly is modified to provide a shank. The inner member may be either a plain spherical bearing or a sleeve bearing. Excludes BEARING, PLAIN, SPHERICAL and BEARING, PLAIN, SELF-ALIGNING.
What is a Railway Axle Plain Bearing? 13 Items
A Railway Axle Plain Bearing (BEARING,PLAIN,RAILWAY AXLE) is a block of brass or bronze lined with antifriction metal, which serves as a bearing surface, carrying the weight of the railway car and resting on the axle journal.
What is a Thrust Washer Bearing? 8352 Items
A Thrust Washer Bearing (BEARING,WASHER,THRUST) is an item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.
What is a V Bearing? 34 Items
A V Bearing (BEARING,V) is a cylindrical device, primarily designed to furnish a bearing surface for a low-speed oscillating shaft. The item consists of a precision machined or inclosed V or modified V groove and may include a drilled hole for spring loading.
What is a Sleeve Bearing Blank? 101 Items
A Sleeve Bearing Blank (BEARING BLANK,SLEEVE) is an item usually cylindrically shaped with or without a flange. It is designed to be drilled after installation and used as a BEARING, SLEEVE. Excludes items in bulk form. See also BUSHING BLANK.
What is a Sleeve Bearing Half Set? 495 Items
A Sleeve Bearing Half Set (BEARING HALF SET,SLEEVE) is two or more identical or different sizes or types of BEARING HALF, SLEEVE packaged or grouped together for single issue as a unit, for replacement of worn and/or damaged bearings. See BEARING HALF, SLEEVE. Excludes BEARING SET, SLEEVE.
What is a Sleeve Bearing Set? 765 Items
A Sleeve Bearing Set (BEARING SET,SLEEVE) is two or more identical or different sizes or types of BEARING, SLEEVE packaged or grouped together for single issue as a unit, for replacement of worn and/or damaged bearings. See BEARING, SLEEVE. Excludes BEARING HALF SET, SLEEVE.
What is a Sleeve Bearing Half? 1538 Items
A Sleeve Bearing Half (BEARING HALF,SLEEVE) is a half of a two-piece split type BEARING, SLEEVE.
What is a Linear-Rotary Motion Roller? 1431 Items
A Linear-Rotary Motion Roller (ROLLER,LINEAR-ROTARY MOTION) is a cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes BEARING, ROLLER, CYLINDRICAL; ROLLER, ELECTRICAL SWITCH; and friction bearings. See also CAM FOLLOWER, NEEDLE BEARING.
What is a Mechanical Equipment Bearing Replacement Parts Kit? 501 Items
A Mechanical Equipment Bearing Replacement Parts Kit (PARTS KIT,BEARING REPLACEMENT,MECHANICAL EQUIPMENT) is a parts kit consisting of one or more bearings or bearing assemblies, which are issued as a unit for repair/replacement. It may include gasket(s), O-ring(s), race(s), seal(s), spacer(s), washer(s), or the like.
What is a Track Roller Plain Bearing? 68 Items
A Track Roller Plain Bearing (BEARING,PLAIN,TRACK ROLLER) is a detachable assembly consisting of an outer and inner ring, designed for use in a track roller or similar application. It is used to carry a load and reduce sliding friction. It does not employ rolling elements, but may incorporate non-metallic liners or sleeves to aid in reducing friction and/or providing lubrication. See also BEARING, BALL, TRACK ROLLER; and BEARING, ROLLER, TRACK ROLLER. Excludes BEARING, PLAIN, SPHERICAL and BEARING, PLAIN, SELF-ALIGNING.
What is a Cam Follower Plain Bearing? 74 Items
A Cam Follower Plain Bearing (BEARING,PLAIN,CAM FOLLOWER) is a detachable assembly, which provides rolling contact with a cam or similar device, and converts reciprocating or oscillating motion to linear motion. The assembly consists of an outer ring and and integral stud. It does not employ rolling elements but may incorporate nonmetallic liners or sleeves to aid in reducing friction and/or providing lubrication. See also CAM FOLLOWER, NEEDLE BEARING.
What is a Jewel Bearing? 37 Items
A Jewel Bearing (BEARING,JEWEL) is an item generally round in shape and usually having a centrally located hole. It has at least one flat bearing surface. It is made of precious or semi-precious gem (ruby, sapphire and the like), natural or synthetic. It is intended for use in precision instruments, meters, timing devices, clocks, and the like.
What is a Thrust Washer Bearing Half? 99 Items
A Thrust Washer Bearing Half (BEARING HALF,WASHER,THRUST) is a half of a two-piece BEARING, WASHER, THRUST.
What is a Thrust Washer Bearing Set? 22 Items
A Thrust Washer Bearing Set (BEARING SET,WASHER,THRUST) is a collection of identical or similar BEARING, WASHER, THRUST designed to be used for replacement of worn and/or damaged washers. Excludes WASHER ASSORTMENT.
What is a Stern Tube Bearing Assembly? 33 Items
A Stern Tube Bearing Assembly (BEARING ASSEMBLY,STERN TUBE) is an assembly consisting of staves, anode, bearing, housing and the like. It supports a rotating propulsion shaft.
What is a Sleeve Bushing Half? 119 Items
A Sleeve Bushing Half (BUSHING HALF,SLEEVE) is a half of a two piece split type BUSHING, SLEEVE.

Stock Items From Supply Class 3120 Stock Items From Supply Class 3120 Page 15 of 345

012089143
LS10020-4-14
RNCC: 3 | RNVC: 2
012089145
LS10020F4A8
RNCC: 3 | RNVC: 2
012088990
HFR-4W30
RNCC: 3 | RNVC: 2
012086472
91-P-1605
RNCC: 3 | RNVC: 9
012086090
91-P-282
RNCC: 3 | RNVC: 9
012086086
91-P-1490
RNCC: 3 | RNVC: 9
012086078
91-P-571
RNCC: 3 | RNVC: 9
012086081
91-P-102
RNCC: 3 | RNVC: 9
012086082
91-P-1749
RNCC: 3 | RNVC: 9
012086079
91-P631
RNCC: 3 | RNVC: 9
012085404
6640-8PIECE1327
RNCC: 3 | RNVC: 9
012082956
LS3859F10PP12
RNCC: 3 | RNVC: 2
012082957
LS3859F5PP15
RNCC: 3 | RNVC: 2
012082952
LS3859F7PP12
RNCC: 3 | RNVC: 2
012082955
LS3859F12PP18
RNCC: 3 | RNVC: 2
012081620
LS11164F8-22
RNCC: 3 | RNVC: 2
012081635
LS3859-4PP14
RNCC: 3 | RNVC: 2
012081631
LS11164F7-14
RNCC: 3 | RNVC: 2
012081632
LS11164-18-20
RNCC: 3 | RNVC: 2
012081634
LS3859-5PP22
RNCC: 3 | RNVC: 2
012081636
LS3859-18PP26
RNCC: 3 | RNVC: 2
012081637
LS3859-4PP18
RNCC: 3 | RNVC: 2
012081633
LS3859-6PP30
RNCC: 3 | RNVC: 2
012081630
LS11164-8-9
RNCC: 3 | RNVC: 2
012081626
LS11164F10-16
RNCC: 3 | RNVC: 2
012081629
LS11164F8-13
RNCC: 3 | RNVC: 2
012081625
LS11164F10-14
RNCC: 3 | RNVC: 2
012081624
LS11164F8-11
RNCC: 3 | RNVC: 2
012081621
LS11164-14-22G
RNCC: 3 | RNVC: 2
012081619
LS11164-6-14
RNCC: 3 | RNVC: 2
012081622
LS11164F5-7
RNCC: 3 | RNVC: 2
012081600
LS11164F3-13
RNCC: 3 | RNVC: 2
012081617
LS11164-5-17
RNCC: 3 | RNVC: 2
012081618
LS11164-14-24G
RNCC: 3 | RNVC: 2
012081613
LS11164F7-11
RNCC: 3 | RNVC: 2
012081601
LS11164F4-18
RNCC: 3 | RNVC: 2
012081610
LS11164F6-4
RNCC: 3 | RNVC: 2
012081612
LS11164F7-12
RNCC: 3 | RNVC: 2
012081616
LS11164-5-26
RNCC: 3 | RNVC: 2
012081615
LS11164-5-18
RNCC: 3 | RNVC: 2
012081603
LS11164-5-14
RNCC: 3 | RNVC: 2
012081614
LS11164F7-8
RNCC: 3 | RNVC: 2
012081608
LS11164F7-16
RNCC: 3 | RNVC: 2
012081609
LS11164F12-28
RNCC: 3 | RNVC: 2
012081606
LS11164-5-4
RNCC: 3 | RNVC: 2
012081605
LS11164-5-16
RNCC: 3 | RNVC: 2
012081611
LS11164F4-11
RNCC: 3 | RNVC: 2
012081599
LS11164F3-17L
RNCC: 3 | RNVC: 2
012081602
LS11164F5-15
RNCC: 3 | RNVC: 2
012080655
2647476P1
RNCC: 3 | RNVC: 1
012080345
JCM-11401-001
RNCC: 3 | RNVC: 2
012078642
12B10616-11
RNCC: 3 | RNVC: 2
012077717
650-1048 PIECE 3
RNCC: 3 | RNVC: 2
501-2151708 PIECE 3
RNCC: 3 | RNVC: 2
SSBN641-501-2151708 PIECE 3
RNCC: 3 | RNVC: 2
012077714
501-2151708 PIECE 7
RNCC: 3 | RNVC: 2
SSBN641-501-2151708 PIECE 7
RNCC: 3 | RNVC: 2
650-1048 PIECE 7
RNCC: 3 | RNVC: 2
012075790
9384611
RNCC: 3 | RNVC: 2
012074437
7517E91 GROUP 1
RNCC: 3 | RNVC: 2
012074439
658E325
RNCC: 3 | RNVC: 2
658E325QC.2THRU12,14,15AND16
RNCC: 3 | RNVC: 2
012071945
12717691
RNCC: 3 | RNVC: 2
012071807
69407
RNCC: 3 | RNVC: 2
X-96328 PIECE 7
RNCC: 5 | RNVC: 9
012070395
LD131-0028-1188
RNCC: 3 | RNVC: 2
012059909
12619008-3
RNCC: 3 | RNVC: 2
012055727
814388-5
RNCC: 3 | RNVC: 2
012055143
KSSB5-19
RNCC: 3 | RNVC: 2
012055146
KBNE7-35W
RNCC: 3 | RNVC: 2
012055145
KSSB10-24
RNCC: 3 | RNVC: 2
012055144
KS6-3
RNCC: 3 | RNVC: 2
012048606
LS11164-3-10
RNCC: 3 | RNVC: 2
012046951
232-31817-1
RNCC: 1 | RNVC: 2
AHJF28C-103
RNCC: 3 | RNVC: 2
012044243
BACB28Y7E040
RNCC: 3 | RNVC: 2
012038461
162299-1
RNCC: 3 | RNVC: 2
162299-1
RNCC: 5 | RNVC: 9
012038460
LS3859F4PP14
RNCC: 3 | RNVC: 2
012038457
732038-6
RNCC: 3 | RNVC: 2
012038466
G210-4
RNCC: 3 | RNVC: 2
012038458
732004-2
RNCC: 3 | RNVC: 2
012038459
740981-1
RNCC: 3 | RNVC: 2
012036480
A308A660-101
RNCC: 3 | RNVC: 2
012034977
H-2995 PCS 1 THRU 66
RNCC: 3 | RNVC: 2
012034875
520444-1
RNCC: 3 | RNVC: 2
012032341
BACB28X6E025
RNCC: 3 | RNVC: 2
012032173
E-1-0187-6PC10
RNCC: 3 | RNVC: 1
5667-A
RNCC: 5 | RNVC: 1
E-1-0187-6
RNCC: 5 | RNVC: 1
012030334
BACB28Y6E030
RNCC: 3 | RNVC: 2
012026224
RBT6E
RNCC: 3 | RNVC: 2
012026014
8N220
RNCC: 3 | RNVC: 2
012022601
91622
RNCC: 3 | RNVC: 2
012021796
1376-18-115
RNCC: 3 | RNVC: 2
012021218
464685
RNCC: 3 | RNVC: 2
012020167
231-D
RNCC: 3 | RNVC: 2
25065-D PIECE 231
RNCC: 5 | RNVC: 2
P231GROUP P
RNCC: 5 | RNVC: 2
YT138-S47-80 PIECE 231
RNCC: 5 | RNVC: 2
012018993
9-632-100922
RNCC: 3 | RNVC: 9
2CD902
RNCC: 5 | RNVC: 2
9-632-100922
RNCC: C | RNVC: 1
012013038
KBE8-66
RNCC: 3 | RNVC: 2
012013037
KPW12-1
RNCC: 3 | RNVC: 2
012013036
KPW12A
RNCC: 3 | RNVC: 2
012009675
0213-3-2004-2
RNCC: 3 | RNVC: 2
012006154
0947-47-240
RNCC: 3 | RNVC: 2
012006051
1311024-245
RNCC: 3 | RNVC: 2
012003801
N-507-62
RNCC: 3 | RNVC: 2
N-699 PIECE 62
RNCC: 5 | RNVC: 9
012002776
516-2005919ASSYB
RNCC: 3 | RNVC: 1
516-2005919ASSYB PIECE 12CP
RNCC: 5 | RNVC: 2
011998209
A1256
RNCC: 3 | RNVC: 2
011993293
1-063-027904-OD
RNCC: 3 | RNVC: 9
011992177
RT-109-B
RNCC: 3 | RNVC: 2
RT-109-B
RNCC: 5 | RNVC: 9
RT-866-A ITEM 10
RNCC: 5 | RNVC: 9
011988479
42-06-70-EH0
RNCC: 3 | RNVC: 2
011987978
M81934/1-07A008
RNCC: 2 | RNVC: 2
MIL-B-81934/1
RNCC: 4 | RNVC: 1
011984708
NAS74A4E109P
RNCC: 3 | RNVC: 2
011982371
441335C1
RNCC: 3 | RNVC: 2
011978183
LD131-0029-0432
RNCC: 3 | RNVC: 2
011976418
178349
RNCC: 3 | RNVC: 2
ADSB16-4
RNCC: 5 | RNVC: 2
SWBLFN-16-002
RNCC: 5 | RNVC: 2
ASBT16-109
RNCC: 5 | RNVC: 9
KPD16-3
RNCC: 5 | RNVC: 9
74B330064-101
RNCC: 7 | RNVC: 2
011976400
9139092
RNCC: 3 | RNVC: 2
011976403
C6AZB258A
RNCC: 3 | RNVC: 2
C6AZB258A
RNCC: 5 | RNVC: 9
011972342
L3300044-003
RNCC: 3 | RNVC: 2
011971420
BACB28W16B012
RNCC: 3 | RNVC: 2