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 11 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 11 of 345

012703882
033-71565-A
RNCC: 3 | RNVC: 2
012699404
9000F132 PIECE 170
RNCC: 3 | RNVC: 2
012699312
1382900
RNCC: 3 | RNVC: 2
012698738
865A1120
RNCC: 3 | RNVC: 2
012697854
624-9588-001
RNCC: 3 | RNVC: 2
012696387
PWA56018-4
RNCC: 3 | RNVC: 2
012695032
2125D700-13
RNCC: 3 | RNVC: 2
012693468
C-5527 IT17
RNCC: 3 | RNVC: 1
012692788
2295139P1
RNCC: 3 | RNVC: 1
012692787
2268464P1
RNCC: 3 | RNVC: 1
012692785
3238595P1
RNCC: 3 | RNVC: 1
012692786
3238595P2
RNCC: 3 | RNVC: 1
012689496
1D96588PK-001
RNCC: 3 | RNVC: 2
012689494
M81934/12C016
RNCC: 2 | RNVC: 2
MIL-B-81934/1
RNCC: 4 | RNVC: 1
MS21240-12C016
RNCC: 5 | RNVC: 9
012685783
0635 303 050
RNCC: 3 | RNVC: 2
0635303050
RNCC: 5 | RNVC: 2
012684915
624-3813-001
RNCC: 3 | RNVC: 2
012682711
15-2061-001
RNCC: 3 | RNVC: 2
012680066
518-5794758 ITEM 17 AND 18
RNCC: 3 | RNVC: 2
5794758 ITEM 17 AND 18
RNCC: 5 | RNVC: 2
201807 ITEM 17 AND 18
RNCC: 5 | RNVC: 9
012671248
156559
RNCC: 3 | RNVC: 2
012667386
40906-P3
RNCC: 3 | RNVC: 2
012666252
075001191-000
RNCC: 3 | RNVC: 2
063000145 ITEM 2
RNCC: 5 | RNVC: 2
012664956
L20-10
RNCC: 3 | RNVC: 2
012664703
F-101
RNCC: 3 | RNVC: 2
012663958
76A04001-067
RNCC: 3 | RNVC: 2
012661054
B-1060003-01
RNCC: 3 | RNVC: 2
012659356
LD137-0007-4012
RNCC: 3 | RNVC: 2
012658252
172308-1
RNCC: 3 | RNVC: 2
012652557
8930F-2-1533PC16
RNCC: 3 | RNVC: 1
8938C55A
RNCC: 5 | RNVC: 1
012648916
17423-A-2
RNCC: 3 | RNVC: 2
012647864
S4392
RNCC: 3 | RNVC: 2
5545862
RNCC: 7 | RNVC: 2
012644535
AB-2503-236
RNCC: 3 | RNVC: 2
012643662
4193120050
RNCC: 3 | RNVC: 2
012641214
1209-83
RNCC: 3 | RNVC: 2
012641126
328638G01
RNCC: 3 | RNVC: 2
012641035
3000040-1
RNCC: 3 | RNVC: 2
012641033
3000040-3
RNCC: 3 | RNVC: 2
012640249
B14-9
RNCC: 3 | RNVC: 2
012640177
028483
RNCC: 3 | RNVC: 2
MAF10002 PIECE 3
RNCC: 5 | RNVC: 2
012639819
3165522
RNCC: 3 | RNVC: 1
012639821
3165265-1
RNCC: 3 | RNVC: 1
012638754
7206B
RNCC: 3 | RNVC: 2
012638299
LD137-0041-0514
RNCC: 3 | RNVC: 2
012636890
A-203693-3
RNCC: 3 | RNVC: 2
012636118
A-203693-2
RNCC: 3 | RNVC: 2
012634331
5766744-0050
RNCC: 3 | RNVC: 2
5766744-0050
RNCC: 5 | RNVC: 2
012632717
2S4962
RNCC: 3 | RNVC: 2
012632742
5766744-0051
RNCC: 3 | RNVC: 2
012632720
615NBWA892TBLDNVS-35
RNCC: 3 | RNVC: 2
615NBWA892TBLDNVS-35
RNCC: 5 | RNVC: 9
012632715
L6314064-003
RNCC: 3 | RNVC: 2
012630819
ADB-A1-6
RNCC: 3 | RNVC: 2
012628276
4M240-3
RNCC: 3 | RNVC: 2
4M240-3
RNCC: 5 | RNVC: 2
4M240-3
RNCC: 5 | RNVC: 2
4M240-3
RNCC: 5 | RNVC: 2
012626834
10085019
RNCC: 3 | RNVC: 2
012624883
301-510-720-4
RNCC: 3 | RNVC: 2
012622070
0180743
RNCC: 3 | RNVC: 2
012621811
2256119
RNCC: 3 | RNVC: 1
012616694
L3227319-003
RNCC: 3 | RNVC: 2
012615866
2955
RNCC: 3 | RNVC: 2
2955
RNCC: 3 | RNVC: 9
NAVAL REPAIR PART
RNCC: 5 | RNVC: 1
2955
RNCC: 5 | RNVC: 9
012615865
52-226
RNCC: 3 | RNVC: 2
NAVAL REPAIR PART
RNCC: 5 | RNVC: 1
840-2-8
RNCC: 5 | RNVC: 9
012609883
NAS77A12-025N
RNCC: 3 | RNVC: 2
012609795
NF203117-1
RNCC: 3 | RNVC: 2
012608851
4644330187
RNCC: 3 | RNVC: 2
4644330187
RNCC: 5 | RNVC: 2
012605751
76429600
RNCC: 3 | RNVC: 2
76429600
RNCC: 3 | RNVC: 9
012604832
KBD4CR
RNCC: 3 | RNVC: 2
012600490
NAS77A12-038N
RNCC: 3 | RNVC: 2
012599577
0730103366
RNCC: 3 | RNVC: 2
0730103366
RNCC: 5 | RNVC: 2
012596704
1128ABM40129-11
RNCC: 3 | RNVC: 2
012596248
BRG74T2
RNCC: 3 | RNVC: 2
012596245
4644303046
RNCC: 3 | RNVC: 2
4644303046
RNCC: 5 | RNVC: 2
012596224
SLV14T2
RNCC: 3 | RNVC: 2
012596233
SLV13T2
RNCC: 3 | RNVC: 2
1004262-P20
RNCC: 5 | RNVC: 2
SLV 13T2
RNCC: 5 | RNVC: 9
012595496
ST4M139P10-61
RNCC: 3 | RNVC: 2
012595497
ST4M139P12-65
RNCC: 3 | RNVC: 2
012594481
12P12040-13
RNCC: 3 | RNVC: 2
012594035
0730 260 575
RNCC: 3 | RNVC: 2
0730 260 575
RNCC: 5 | RNVC: 2
012593277
1159CM20113-1
RNCC: 3 | RNVC: 2
012593276
1159CM20221-1
RNCC: 3 | RNVC: 2
012592479
L3002637-027
RNCC: 3 | RNVC: 2
012588542
412-01221-FG
RNCC: 3 | RNVC: 2
B-B8076L ITEM 8
RNCC: 5 | RNVC: 1
012580853
35293083
RNCC: 3 | RNVC: 2
012577451
SU307-9E-9
RNCC: 3 | RNVC: 2
SU307-9E-F09
RNCC: 5 | RNVC: 2
012576052
3236726
RNCC: 3 | RNVC: 2
012573299
R48493
RNCC: 3 | RNVC: 2
012571696
1S7102
RNCC: 3 | RNVC: 2
012569292
11629860-2
RNCC: 1 | RNVC: 2
11629860-2
RNCC: 3 | RNVC: 2
SPML3005
RNCC: 5 | RNVC: 9
012569851
40-1934,PC 14
RNCC: 3 | RNVC: 1
40-1934,PC14*HAYNES25
RNCC: 5 | RNVC: 1
30-1739PC14
RNCC: 5 | RNVC: 1
40-1933-14
RNCC: 5 | RNVC: 1
012569852
40-1934,PC 13
RNCC: 3 | RNVC: 1
30-1739PC13
RNCC: 5 | RNVC: 1
40-1933-13
RNCC: 5 | RNVC: 1
40-1934PC13*17-4PH
RNCC: 5 | RNVC: 1
012564773
55500-0344-00
RNCC: 3 | RNVC: 2
012564527
15SFL24
RNCC: 3 | RNVC: 9
012562952
7113-099-OAP
RNCC: 3 | RNVC: 2
012560984
P004-3-115
RNCC: 3 | RNVC: 2
012559339
CONN-9C550-AA
RNCC: 3 | RNVC: 2
012557427
M81934/1-10C011
RNCC: 2 | RNVC: 2
MIL-B-81934/1B
RNCC: 4 | RNVC: 1
06-282-10-011
RNCC: 5 | RNVC: 2
AHJ10C(L1)011
RNCC: 5 | RNVC: 2
04A075-10C011
RNCC: 5 | RNVC: 2
AHJ10C011
RNCC: 5 | RNVC: 2
MBSS-10-011
RNCC: 5 | RNVC: 2
KDJ10C011-341
RNCC: 5 | RNVC: 2
KRJ10SB-011S
RNCC: 5 | RNVC: 2
012556613
52C8402-1
RNCC: 3 | RNVC: 2
012555299
M81934/2-08A025
RNCC: 2 | RNVC: 2
012549094
T11886
RNCC: 3 | RNVC: 2
012549049
810-0219
RNCC: 3 | RNVC: 2
AA749
RNCC: 5 | RNVC: 9
012549048
G87-86
RNCC: 3 | RNVC: 2
G-89 PIECE 86
RNCC: 5 | RNVC: 9
012547795
SB7002-045
RNCC: 3 | RNVC: 2
012544293
602-000-073
RNCC: 3 | RNVC: 2
413-602-000-073
RNCC: 3 | RNVC: 2
413-602-073
RNCC: 5 | RNVC: 9
012542473
949596
RNCC: 3 | RNVC: 2
949596
RNCC: 5 | RNVC: 2
949596
RNCC: 5 | RNVC: 9
012538941
26-4-2006
RNCC: 3 | RNVC: 2
26-4-2006
RNCC: 5 | RNVC: 9
012538940
8-024-702-1
RNCC: 3 | RNVC: 9
012538937
5131008
RNCC: 3 | RNVC: 2
012537171
D-405256-21
RNCC: 3 | RNVC: 2
012536666
10A20010-007
RNCC: 3 | RNVC: 2
012535430
M81934/1-09C032
RNCC: 2 | RNVC: 2
MIL-B-81934/1
RNCC: 4 | RNVC: 1
012531756
7-105304
RNCC: 3 | RNVC: 2
012527197
A-13482-34-16
RNCC: 3 | RNVC: 2