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 24 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 24of 646

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
012857691
16-188
RNCC: 3 | RNVC: 2
012854909
1651524C91
RNCC: 3 | RNVC: 2
1651524
RNCC: C | RNVC: 1
012854247
408662-0000
RNCC: 3 | RNVC: 2
012852640
81860720
RNCC: 3 | RNVC: 2
012850503
149-236
RNCC: 3 | RNVC: 2
886C684P1
RNCC: 5 | RNVC: 9
012847781
47-160-1
RNCC: 3 | RNVC: 2
012844223
6506121 PC 1,2,5,6,7
RNCC: 3 | RNVC: 2
012844224
6506121 PC 3,4,5,6,7
RNCC: 3 | RNVC: 2
012838359
190009
RNCC: 3 | RNVC: 2
012835687
NAS537B67P044
RNCC: 3 | RNVC: 2
012835688
HSB7-101
RNCC: 3 | RNVC: 2
012833292
075001190
RNCC: 3 | RNVC: 2
012832885
737117-1
RNCC: 3 | RNVC: 2
012832586
HSBY12-347
RNCC: 3 | RNVC: 2
012832409
107R3590-4
RNCC: 3 | RNVC: 2
107R3590-4
RNCC: 5 | RNVC: 2
107R3590-4
RNCC: 5 | RNVC: 2
107R3590-4
RNCC: 5 | RNVC: 2
107R3590-4
RNCC: 5 | RNVC: 2
107R3590-4
RNCC: 5 | RNVC: 9
012828143
HRA60A-379
RNCC: 3 | RNVC: 9
012827699
40807
RNCC: 3 | RNVC: 2
012827700
504-000730
RNCC: 3 | RNVC: 2
012826814
CA8802-11
RNCC: 3 | RNVC: 1
CA9456PC11(SPCLN)
RNCC: 5 | RNVC: 1
012824740
27016849
RNCC: 3 | RNVC: 2
27016849
RNCC: 5 | RNVC: 9
27016849
RNCC: 5 | RNVC: 9
012824741
750731-20
RNCC: 3 | RNVC: 2
012824739
27017140
RNCC: 3 | RNVC: 2
27017140
RNCC: 5 | RNVC: 9
27017140
RNCC: 5 | RNVC: 9
012824410
6506121 PC 172,174,176-181
RNCC: 3 | RNVC: 2
012820447
Y-16440-3-83
RNCC: 3 | RNVC: 2
012820404
1V10C0001-9
RNCC: 3 | RNVC: 2
012818431
JP10010
RNCC: 3 | RNVC: 2
012817211
12354092
RNCC: 3 | RNVC: 2
012817095
3XA-17
RNCC: 3 | RNVC: 2
3X-N ITEM 17
RNCC: 5 | RNVC: 2
012813879
GE12C
RNCC: 3 | RNVC: 9
012806046
M81934/1-16A056
RNCC: 2 | RNVC: 2
MIL-B-81934/1
RNCC: 4 | RNVC: 1
012800986
HU7-109
RNCC: 3 | RNVC: 2
012800551
525-000717
RNCC: 3 | RNVC: 2
012800552
525-000774
RNCC: 3 | RNVC: 2
012799721
8D0027-2
RNCC: 3 | RNVC: 2
8R0098 ITEM 5
RNCC: 5 | RNVC: 2
012798904
75A690640-2001
RNCC: 3 | RNVC: 2
012798903
60400-08107-120
RNCC: 3 | RNVC: 2
012795803
ST4M139C3-19
RNCC: 3 | RNVC: 2
012795800
4M43P2-015
RNCC: 3 | RNVC: 2
012795801
ST4M139BCP4-15
RNCC: 3 | RNVC: 2
012793944
BG203321-2
RNCC: 3 | RNVC: 9
BG203321-2
RNCC: 5 | RNVC: 9
BG203321-2
RNCC: 5 | RNVC: 9
012792974
7B4-P016
RNCC: 3 | RNVC: 2
012792675
3502-10-10
RNCC: 3 | RNVC: 9
012792674
WD3105A1032-8
RNCC: 3 | RNVC: 2
012792670
WD3105A1032-11
RNCC: 3 | RNVC: 2
012792664
51349
RNCC: 3 | RNVC: 9
012792448
201713XL
RNCC: 3 | RNVC: 2
201713SXL
RNCC: 5 | RNVC: 2
012790375
WD3105A1032-13
RNCC: 3 | RNVC: 2
012788540
4F59200-179A
RNCC: 3 | RNVC: 2
012788428
XV-02-002-40
RNCC: 3 | RNVC: 2
C8004-02-002-040
RNCC: 5 | RNVC: 2
012784261
2540628
RNCC: 3 | RNVC: 2
012782056
MC-022-B ITEM 14 6IN
RNCC: 3 | RNVC: 1
MA06.06-14
RNCC: 5 | RNVC: 1
MA06.06-14L1
RNCC: 5 | RNVC: 2
MC-022-B ITEM 14 6INL1
RNCC: 5 | RNVC: 2
012781851
386075C1
RNCC: 3 | RNVC: 2
012781835
04754064
RNCC: 3 | RNVC: 2
012777286
04707775
RNCC: 3 | RNVC: 2
012776273
LS35279-5-9
RNCC: 3 | RNVC: 2
012775052
HMR-4
RNCC: 3 | RNVC: 2
HMR-4
RNCC: 5 | RNVC: 2
012775044
WT-55651-6
RNCC: 3 | RNVC: 2
012773816
AJGDA4-011
RNCC: 3 | RNVC: 2
KDJ04A011-58
RNCC: 3 | RNVC: 2
NH7504A4-011
RNCC: 3 | RNVC: 2
BJ8TF-011-W4
RNCC: 3 | RNVC: 2
BJ8TF-011-W4
RNCC: 5 | RNVC: 9
C7504A4-011
RNCC: 7 | RNVC: 2
012773240
3001705-2
RNCC: 3 | RNVC: 2
012772404
1V18C0001-9
RNCC: 3 | RNVC: 2
012772138
GE110UA2RS
RNCC: 3 | RNVC: 2
012771811
03005-40
RNCC: 3 | RNVC: 2
012771813
03005-190
RNCC: 3 | RNVC: 2
012771809
03013-62
RNCC: 3 | RNVC: 2
012771034
13083239-6
RNCC: 3 | RNVC: 2
012769292
AJGDA4-009
RNCC: 3 | RNVC: 2
KDJ04A009-58
RNCC: 3 | RNVC: 2
NH7504A4-009
RNCC: 3 | RNVC: 2
BJ8TF-009-W4
RNCC: 3 | RNVC: 2
BJ8TF-009-W4
RNCC: 5 | RNVC: 9
C7504A4-009
RNCC: 7 | RNVC: 2
012768253
NAS538B6P050
RNCC: 3 | RNVC: 2