NSN 3110-00-100-0510 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0510. Manufacturer of record part number: 12303.
Manufacturer of record: Federal-Mogul Corp Government Sales Dept
Identification
NSN: 3110-00-100-0510
NIIN: 001000510
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: 12303
Manufacturer: Federal-Mogul Corp Government Sales Dept
General Description
The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0510, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Federal-Mogul Corp Government Sales Dept. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3110-00-100-0510
Primary Part Number
12303
Item Name
Cup,tapered Roller Bearing
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
Federal-Mogul Corp Government Sales Dept
Status
ACTIVE
Style Designator
NORMAL ANGLE
Outside Diameter
3.0312 INCHES NOMINAL IN
Backface Corner Radius
0.0600 INCHES NOMINAL IN
Standard Tolerance Designation
AFBMA CLASS 2
Material
STEEL OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-00-129-616212303POSSIBLE MATCH
GASKET
Possible match (shared part number)Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5325-00-276-4910POSSIBLE MATCH
STUD,SNAP FASTENER
Possible match (shared part number)
2910-00-740-60940-12303POSSIBLE MATCH
CARBURETOR FLOAT
Possible match (shared part number)Zenith Fuel Systems Llc
4730-01-111-1382P-HC-4528POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
Possible match (shared part number)Illinois Tool Works Inc.
5865-01-202-3917POSSIBLE MATCH
MODULATOR,RADIO TRANSMITTER
Possible match (shared part number)
5305-01-229-9595POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)
3110-01-382-3157POSSIBLE MATCH
RETAINER,ROLLER,BEARING
Possible match (shared part number)
1240-01-551-573910929POSSIBLE MATCH
MOUNT,SIGHT
Possible match (shared part number)Aimpoint Inc Dba Aimpoint Inc
6120-01-623-280312303POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)Gaylord Marine Services, Inc.
1005-01-658-258812303POSSIBLE MATCH
DUMMY SCREW
Possible match (shared part number)O F Mossberg & Sons Inc
E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
103S32
5/9Secondary reference
Ipi Medical Products
Related Parts
5330-00-129-6162POSSIBLE MATCH
GASKET
12303
5325-00-276-4910POSSIBLE MATCH
STUD,SNAP FASTENER
2910-00-740-6094POSSIBLE MATCH
CARBURETOR FLOAT
0-12303
4730-01-111-1382POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
P-HC-4528
5865-01-202-3917POSSIBLE MATCH
MODULATOR,RADIO TRANSMITTER
5305-01-229-9595POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
3110-01-382-3157POSSIBLE MATCH
RETAINER,ROLLER,BEARING
1240-01-551-5739POSSIBLE MATCH
MOUNT,SIGHT
10929
6120-01-623-2803POSSIBLE MATCH
TRANSFORMER,POWER
12303
1005-01-658-2588POSSIBLE MATCH
DUMMY SCREW
12303
Frequently Asked Questions
What is NSN 3110-00-100-0510?
NSN 3110-00-100-0510 is a Cup,tapered Roller Bearing, manufactured by Federal-Mogul Corp Government Sales Dept, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-100-0510?
NSN 3110-00-100-0510 has 3 manufacturer part numbers on file: 12303 (Federal-Mogul Corp Government Sales Dept), 827475 (Garwood/feller Inc Garwood Winch Div), 12303 (The Timken Corporation).
What NSN replaces 3110-00-100-0510?
10 possible matches (shared part number, not a government interchangeability claim): 5330-00-129-6162, 5325-00-276-4910, 2910-00-740-6094. Verify interchangeability with system specifications before substitution.
What are the specifications of 12303?
Key specifications for 12303: Style Designator: NORMAL ANGLE; Overall Width: 0.4688 INCHES NOMINAL IN; Outside Diameter: 3.0312 INCHES NOMINAL IN; Backface Corner Radius: 0.0600 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-100-0510 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.