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 9 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 9 of 345

013102708
BLATT 128 TEIL 23
RNCC: 3 | RNVC: 2
013102707
08007
RNCC: 3 | RNVC: 2
013102701
22216
RNCC: 3 | RNVC: 2
013102704
1-038-11312 F
RNCC: 3 | RNVC: 9
013102706
10/174/04
RNCC: 3 | RNVC: 2
013102705
23
RNCC: 3 | RNVC: 2
013102703
1-070-029620
RNCC: 3 | RNVC: 9
013096628
64265
RNCC: 3 | RNVC: 2
013096026
ZF-081264
RNCC: 3 | RNVC: 2
013095342
3327051
RNCC: 3 | RNVC: 9
3327051
RNCC: C | RNVC: 1
013094623
33962-M-316SS-2.0IN-5
RNCC: 3 | RNVC: 1
33962-M-316SS-2.0IN-PC5
RNCC: 5 | RNVC: 1
013094503
2429
RNCC: 3 | RNVC: 2
013094504
2428
RNCC: 3 | RNVC: 2
013094502
2661
RNCC: 3 | RNVC: 2
013093450
2019 MIL
RNCC: 3 | RNVC: 2
013092693
0671
RNCC: 3 | RNVC: 2
013091624
1100P404F1
RNCC: 3 | RNVC: 2
013089737
SK3766-1
RNCC: 3 | RNVC: 2
013084425
12232-13-57
RNCC: 3 | RNVC: 1
G15BMF-70ITEM7
RNCC: 5 | RNVC: 1
013074772
624-3741-001
RNCC: 3 | RNVC: 2
013072399
1257546
RNCC: 3 | RNVC: 1
1257551ABPC10
RNCC: 5 | RNVC: 1
1257550-10
RNCC: 5 | RNVC: 1
1257550ABPC10
RNCC: 5 | RNVC: 1
013072398
4075246
RNCC: 3 | RNVC: 2
013072144
5-23
RNCC: 3 | RNVC: 2
5-23
RNCC: 5 | RNVC: 1
013070763
M81934-2-04A006
RNCC: 2 | RNVC: 2
013070762
M81934-1-9A036
RNCC: 2 | RNVC: 2
013065334
60-6531-1
RNCC: 3 | RNVC: 2
013060968
1266-1316-010
RNCC: 3 | RNVC: 9
013039062
3321969
RNCC: 3 | RNVC: 9
3321969
RNCC: C | RNVC: 1
013038612
21395-22
RNCC: 3 | RNVC: 2
013027298
3121834
RNCC: 3 | RNVC: 2
013025975
NAS537B5032
RNCC: 3 | RNVC: 2
013025774
21132
RNCC: 3 | RNVC: 2
013025775
OL10
RNCC: 3 | RNVC: 2
013025773
21133
RNCC: 3 | RNVC: 2
013025772
21131
RNCC: 3 | RNVC: 2
013025233
2300-446 ITEM 57
RNCC: 3 | RNVC: 1
2300-446 ITEM 57SS
RNCC: 5 | RNVC: 2
013025234
2300-446 ITEM 56
RNCC: 3 | RNVC: 2
845-4557601 ITEM56
RNCC: 5 | RNVC: 2
845-4457601 ITEM56
RNCC: 5 | RNVC: 2
013024397
K611873-11
RNCC: 3 | RNVC: 2
013022867
KWDB24CR
RNCC: 3 | RNVC: 2
013022810
594.882
RNCC: 3 | RNVC: 2
013022807
594.934.1
RNCC: 3 | RNVC: 2
013022808
671.123
RNCC: 3 | RNVC: 2
013022809
594.881
RNCC: 3 | RNVC: 2
013017798
046508
RNCC: 3 | RNVC: 2
046508
RNCC: 5 | RNVC: 9
013017343
401076-7
RNCC: 3 | RNVC: 2
013017344
G11
RNCC: 3 | RNVC: 2
013015519
458-56176-1
RNCC: 3 | RNVC: 2
013011304
LW13212M10P10
RNCC: 3 | RNVC: 2
LW13212M10P10
RNCC: 5 | RNVC: 2
013011303
LW13209M10
RNCC: 3 | RNVC: 2
LW13209M10
RNCC: 5 | RNVC: 2
013011300
LW13212M03P10
RNCC: 3 | RNVC: 2
LW13212M03P10
RNCC: 5 | RNVC: 2
013011299
LW13209M03
RNCC: 3 | RNVC: 2
LW13209M03
RNCC: 5 | RNVC: 2
013011301
LW13209M06
RNCC: 3 | RNVC: 2
LW13209M06
RNCC: 5 | RNVC: 2
013010874
K659710-1
RNCC: 1 | RNVC: 2
KSC177004H
RNCC: 3 | RNVC: 2
013009998
P053691
RNCC: 3 | RNVC: 2
013009999
P054521
RNCC: 3 | RNVC: 2
013002678
42025
RNCC: 3 | RNVC: 2
013001852
4187754-8
RNCC: 3 | RNVC: 2
013001305
CF-4225-P-19
RNCC: 3 | RNVC: 9
012992039
209058-1
RNCC: 3 | RNVC: 1
506487-1ITEM8
RNCC: 5 | RNVC: 1
012991971
B28-00910
RNCC: 3 | RNVC: 1
D-18861-3PC11,3/4IN
RNCC: 5 | RNVC: 1
012991969
104458-1
RNCC: 3 | RNVC: 1
506487-1ITEM35
RNCC: 5 | RNVC: 1
012991970
F-1125-483
RNCC: 3 | RNVC: 1
H-SP-1087ITEM11
RNCC: 5 | RNVC: 1
012991968
104028-8
RNCC: 3 | RNVC: 1
509386-3PC3
RNCC: 5 | RNVC: 1
012991723
LS 1528
RNCC: 3 | RNVC: 2
012990140
612-194-001
RNCC: 3 | RNVC: 2
012990144
20512
RNCC: 3 | RNVC: 2
012990138
612-201-001
RNCC: 3 | RNVC: 2
012990137
612-200-001
RNCC: 3 | RNVC: 2
012989356
SKF208
RNCC: 3 | RNVC: 2
313-120 REF.4A2
RNCC: 5 | RNVC: 9
012979565
535537000-2001
RNCC: 3 | RNVC: 2
012977990
CB-3E-102
RNCC: 3 | RNVC: 2
012977591
744864
RNCC: 3 | RNVC: 2
012977593
1T806
RNCC: 3 | RNVC: 2
012976451
2609609
RNCC: 3 | RNVC: 2
012974735
508294-1ITEMK
RNCC: 3 | RNVC: 1
012973035
4T9301
RNCC: 3 | RNVC: 2
012972814
1414636
RNCC: 3 | RNVC: 2
033-0001
RNCC: 5 | RNVC: 9
012968539
118A100-2
RNCC: 3 | RNVC: 2
118A100-1
RNCC: 3 | RNVC: 2
430630
RNCC: 5 | RNVC: 2
012962720
F5554860
RNCC: 3 | RNVC: 2
012960392
7T3145
RNCC: 3 | RNVC: 2
012960393
6T7800
RNCC: 3 | RNVC: 2
012958979
3103364-1-1
RNCC: 3 | RNVC: 2
012958803
SK-187803
RNCC: 3 | RNVC: 2
SK-187803
RNCC: 3 | RNVC: 9
RY-181159 ITEM 12
RNCC: 5 | RNVC: 2
RY-181159 ITEM 12
RNCC: 5 | RNVC: 9
012954713
6011033
RNCC: 3 | RNVC: 2
012949318
16884 PIECE 87
RNCC: 3 | RNVC: 2
16885-1
RNCC: 5 | RNVC: 2
012948020
1957017
RNCC: 3 | RNVC: 2
1957017
RNCC: 5 | RNVC: 9
012940531
SS4045-4P42
RNCC: 3 | RNVC: 2
012940534
7971180
RNCC: 3 | RNVC: 2
012940527
4J1522
RNCC: 3 | RNVC: 2
012933605
13831A
RNCC: 3 | RNVC: 2
012926573
KSC149999V
RNCC: 3 | RNVC: 2
012926572
KSC149899V
RNCC: 3 | RNVC: 2
012926199
11-4016
RNCC: 3 | RNVC: 2
012926203
1159BM20546-1
RNCC: 3 | RNVC: 2
012923202
2616060
RNCC: 3 | RNVC: 2
012915098
64-18-NH-17
RNCC: 3 | RNVC: 9
012909622
412333
RNCC: 3 | RNVC: 2
012908240
71-1006
RNCC: 3 | RNVC: 2
012906208
31143-076
RNCC: 3 | RNVC: 2
012901995
7645118-12
RNCC: 3 | RNVC: 2
KMDB52-18
RNCC: 3 | RNVC: 2
03-823-52E-005
RNCC: 3 | RNVC: 2
7645118-12
RNCC: 3 | RNVC: 2
7645118-12
RNCC: 5 | RNVC: 9
7645118-12
RNCC: 5 | RNVC: 9
012900878
NAS537B6P044
RNCC: 3 | RNVC: 2
012899256
26487PC12
RNCC: 3 | RNVC: 1
012896653
11627426-43
RNCC: 3 | RNVC: 2
012892536
AL-101055 PIECE 7
RNCC: 3 | RNVC: 9
H-3314892 PIECE 7
RNCC: 5 | RNVC: 9
012891876
14-3066A-28
RNCC: 3 | RNVC: 9
012890402
5311A33
RNCC: 3 | RNVC: 2
012890401
CBS-14-2-N-23F
RNCC: 3 | RNVC: 2
CBS-14-2-N-24F
RNCC: 5 | RNVC: 9
012888448
HMLR-4
RNCC: 3 | RNVC: 2
012887324
1JH1086-43
RNCC: 3 | RNVC: 2
012887170
2429B82H02
RNCC: 3 | RNVC: 1
1083H35 PC 124
RNCC: 5 | RNVC: 1
012886439
07-0147-89
RNCC: 3 | RNVC: 2
07-0147-89
RNCC: 3 | RNVC: 9
012884563
10526699-1
RNCC: 3 | RNVC: 2
012883178
1159CSM20094-15
RNCC: 3 | RNVC: 2
012882656
5P8712
RNCC: 3 | RNVC: 2
012878712
1000301012
RNCC: 3 | RNVC: 2
20167111
RNCC: 5 | RNVC: 2
012875021
KSC149799V
RNCC: 3 | RNVC: 2
012875004
KSC202699V
RNCC: 3 | RNVC: 2
012873525
RLC28624
RNCC: 3 | RNVC: 2
18-1012 ITEM H7
RNCC: 5 | RNVC: 2
18-1012 PART RLC28624
RNCC: 5 | RNVC: 2
18-1025 ITEM H7
RNCC: 5 | RNVC: 2
18-1025 PART RLC28624
RNCC: 5 | RNVC: 2
012870278
1000301009
RNCC: 3 | RNVC: 2
20167089
RNCC: 5 | RNVC: 2
012869248
924B541P1
RNCC: 3 | RNVC: 1
529E895PC9
RNCC: 5 | RNVC: 1
012864013
26-72011-003
RNCC: 3 | RNVC: 9
012864019
WD3105A1032-6
RNCC: 3 | RNVC: 2
012864012
32516540101
RNCC: 3 | RNVC: 2
012862558
43-91
RNCC: 3 | RNVC: 2
012862654
BACB28U18B180
RNCC: 3 | RNVC: 2
012861793
LD137-0041-0429
RNCC: 3 | RNVC: 2
012860672
104348
RNCC: 3 | RNVC: 2