Bearings, Plain, Unmounted

Federal Supply Class (FSC): 3120

NATO Supply Classification Class (NSC): 3120

Group Description: Bearings

Federal Supply Group (FSG): 31

NATO Supply Classification Group (NSG): 31

Page 28 of 646

NSN Format for Bearings, Plain, Unmounted

3120XXXXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN
FSC 3120 Bearings, Plain, Unmounted
FSC 3120 Bearings, Plain, Unmounted

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.

Additional Information for Bearings, Plain, Unmounted Additional Information for Bearings, Plain, Unmounted

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.

NSN by Country NSN by Country

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 .
Which NATO Supply Classification Group is NSC 3120 in?
NSC 3120 is in NATO Supply Classification Group(NSG) 31 which contains .

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

What is a Spherical Plain Bearing? 2198 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? 60258 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? 91287 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? 5035 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? 6621 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? 20 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? 16450 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? 70 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? 205 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? 3761 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? 1388 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? 4067 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? 4469 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? 717 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? 192 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? 152 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? 49 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? 516 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? 94 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? 54 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? 446 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 28of 646

012255294
NH7504A6-096
RNCC: 3 | RNVC: 2
KDJ06A096-58
RNCC: 3 | RNVC: 2
BJ12TF096W4
RNCC: 3 | RNVC: 2
06-382-6E-096-001
RNCC: 3 | RNVC: 2
BJ12TF096W4
RNCC: 5 | RNVC: 9
C7504A6-096
RNCC: 7 | RNVC: 2
012249875
142X177DR-1
RNCC: 3 | RNVC: 9
012249272
KMDB30-8
RNCC: 3 | RNVC: 2
ADS830V16
RNCC: 5 | RNVC: 2
03-826-30E-001
RNCC: 5 | RNVC: 2
GB520BT30A
RNCC: 7 | RNVC: 2
012247999
44B503565-G01
RNCC: 3 | RNVC: 9
012247221
LS10020-7PP9
RNCC: 3 | RNVC: 2
012246250
GN-74-4E
RNCC: 3 | RNVC: 2
012246200
GSB-17-5V
RNCC: 3 | RNVC: 2
012246035
LC2411A
RNCC: 3 | RNVC: 9
76TE2601-3-PIECE-47
RNCC: 5 | RNVC: 2
012245996
112992-1
RNCC: 3 | RNVC: 2
012242432
3/4IN-D33962-M PC 5 416SS
RNCC: 3 | RNVC: 1
000.75 IN-D33962-M PC.5-416SS
RNCC: 5 | RNVC: 1
D33962-M
RNCC: 5 | RNVC: 1
012241264
30222A
RNCC: 3 | RNVC: 2
012239688
4130616
RNCC: 3 | RNVC: 2
012238931
13076329
RNCC: 3 | RNVC: 2
13076329
RNCC: 5 | RNVC: 9
012236912
4044397-0
RNCC: 3 | RNVC: 2
X4265
RNCC: 5 | RNVC: 9
012232671
J551A
RNCC: 3 | RNVC: 9
76TE-2601-3-PIECE-35
RNCC: 5 | RNVC: 2
012232670
A-1138
RNCC: 3 | RNVC: 2
012231842
7615-0005-01
RNCC: 3 | RNVC: 2
012231715
SSN593-520-1862102 PIECE 3
RNCC: 3 | RNVC: 2
SSN593-520-1862102 PIECE 3
RNCC: 5 | RNVC: 2
012230325
LS12644-21A025K
RNCC: 3 | RNVC: 2
012230326
LS12644-12A075K
RNCC: 3 | RNVC: 2
012230323
LS12644-14A025K
RNCC: 3 | RNVC: 2
012230324
LS12644-14D033E
RNCC: 3 | RNVC: 2
012229340
A-1110
RNCC: 3 | RNVC: 2
012227785
ED373A
RNCC: 3 | RNVC: 9
76TE2601-3-PIECE-112
RNCC: 5 | RNVC: 2
012223934
WW-315
RNCC: 3 | RNVC: 9
76TE-2601-3-PIECE-106
RNCC: 5 | RNVC: 2
012216199
510-0101
RNCC: 3 | RNVC: 2
012213243
J-86-M
RNCC: 3 | RNVC: 9
76TE2601-3-PIECE-37
RNCC: 5 | RNVC: 2
012209620
2037234-01
RNCC: 3 | RNVC: 2
2037234-01
RNCC: 5 | RNVC: 9
012201737
36610-75
RNCC: 3 | RNVC: 2
012201730
36610-77
RNCC: 3 | RNVC: 2
012199652
LS11164F6-24
RNCC: 3 | RNVC: 2
012198471
RB-80-12
RNCC: 3 | RNVC: 2
012198130
B47202
RNCC: 3 | RNVC: 2
012197065
538038
RNCC: 3 | RNVC: 2
012196076
75A613629-2001
RNCC: 3 | RNVC: 2
012191315
851854-1
RNCC: 3 | RNVC: 2
012191314
75A613628-2001
RNCC: 3 | RNVC: 2
012191177
RA100NPP
RNCC: 3 | RNVC: 2
012189902
732150-1
RNCC: 3 | RNVC: 2
012188901
2434B69H01
RNCC: 3 | RNVC: 1
012188902
2434B69-H02
RNCC: 3 | RNVC: 1
012186610
146
RNCC: 3 | RNVC: 1
146VM
RNCC: 5 | RNVC: 2
012184943
2510486
RNCC: 3 | RNVC: 2
012182342
LS10020F4PP24
RNCC: 3 | RNVC: 2
012181306
580822-1
RNCC: 3 | RNVC: 2
012177361
75A610010-1001
RNCC: 3 | RNVC: 2
012174687
LS10020F7PP8
RNCC: 3 | RNVC: 2
012174422
1521739-101
RNCC: 3 | RNVC: 2
012174423
1521738-101
RNCC: 3 | RNVC: 2
012170837
2650-2086-1
RNCC: 3 | RNVC: 2
2650-1960 ITEM 4
RNCC: 5 | RNVC: 2
012167461
3901144
RNCC: 3 | RNVC: 2
012166696
MS21241-32A24
RNCC: 2 | RNVC: 2
012158982
1533426-105
RNCC: 3 | RNVC: 2
012157147
5149156
RNCC: 3 | RNVC: 2
012154909
11461479
RNCC: 3 | RNVC: 2
11461479
RNCC: 5 | RNVC: 1
11461479
RNCC: 5 | RNVC: 1
012151443
12P12072-11
RNCC: 3 | RNVC: 2
012150341
277-6172-004
RNCC: 3 | RNVC: 1
103229-0000ITEM11
RNCC: 5 | RNVC: 1
103229-0000 IT11
RNCC: 5 | RNVC: 1
012150342
277-6172-005
RNCC: 3 | RNVC: 1
103232-0000 IT21
RNCC: 5 | RNVC: 1
103232-0000ITEM21
RNCC: 5 | RNVC: 1
012150345
277-6172-008
RNCC: 3 | RNVC: 1
277-6172-008
RNCC: 5 | RNVC: 1
103233-0000
RNCC: 5 | RNVC: 1
012150339
277-6172-001
RNCC: 3 | RNVC: 1
103221-0000ITEM16
RNCC: 5 | RNVC: 1
103221-0000 IT16
RNCC: 5 | RNVC: 1
012150340
277-6172-003
RNCC: 3 | RNVC: 1
1103221-0000ITEM3
RNCC: 5 | RNVC: 1
103221-0000 IT13
RNCC: 5 | RNVC: 1
012150343
277-6172-006
RNCC: 3 | RNVC: 1
103221-0000 IT22
RNCC: 5 | RNVC: 1
103221-0000ITEM22
RNCC: 5 | RNVC: 1
012150344
277-6172-007
RNCC: 3 | RNVC: 1
103221-0000ITEM19
RNCC: 5 | RNVC: 1
103221-0000 IT19
RNCC: 5 | RNVC: 1
012149269
2434B98H02
RNCC: 3 | RNVC: 1
012149270
1084H75 PC.28
RNCC: 3 | RNVC: 1
2434B98H03
RNCC: 5 | RNVC: 1
012149268
3376C89G01
RNCC: 3 | RNVC: 1
1084H75 PC. 23
RNCC: 5 | RNVC: 1
012148872
12600298
RNCC: 3 | RNVC: 2
012148812
H1 X 3/4
RNCC: 3 | RNVC: 9
012147764
105-2203
RNCC: 3 | RNVC: 9
012146752
1531735-103
RNCC: 3 | RNVC: 2
012146750
1526187-119
RNCC: 3 | RNVC: 2
012146753
1531735-117
RNCC: 3 | RNVC: 2
012146751
1531735-113
RNCC: 3 | RNVC: 2
012146754
1531735-107
RNCC: 3 | RNVC: 2
012146749
1526187-113
RNCC: 3 | RNVC: 2
012146746
1526187-107
RNCC: 3 | RNVC: 2
012146748
1526187-103
RNCC: 3 | RNVC: 2
012146747
1526187-117
RNCC: 3 | RNVC: 2
012138393
78869
RNCC: 3 | RNVC: 2
78860 ITEM 14
RNCC: 5 | RNVC: 1
012130739
LS10020-10PP24
RNCC: 3 | RNVC: 2
012130454
1619791-103
RNCC: 3 | RNVC: 2
012130453
1619791-101
RNCC: 3 | RNVC: 2
012126311
1523115-111
RNCC: 3 | RNVC: 2
012126312
1-2117
RNCC: 3 | RNVC: 9
012123887
75A663210-2001
RNCC: 3 | RNVC: 2
012118144
1560853-101
RNCC: 3 | RNVC: 2
012117776
LS10020-5A6
RNCC: 3 | RNVC: 2
012117691
1-3989
RNCC: 3 | RNVC: 9
012117692
1-3874
RNCC: 3 | RNVC: 9