The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-183-8374, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-183-8374 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Lubrication Material | OIL LUBRICATING |
| Cup Width | 0.5313 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Material Document and Classification | F-B-187 FED SPEC 5TH MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 3.1250 INCHES NOMINAL IN |
| Backface Corner Radius | 0.0620 INCHES NOMINAL IN |
| Cone Corner Radius | 0.1090 INCHES NOMINAL IN |
| Standout Width | 0.1562 INCHES NOMINAL IN |
| Cone Width | 0.6875 INCHES NOMINAL IN |
| Bore Diameter | 1.8125 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 18690-18620 | 5/1 Secondary reference The Timken Corporation |
| MS19081-197 | 5/9 Secondary reference U.S. Government activity |
| 10948079-2 | 5/1 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 18690 AND 18620 | 5/1 Secondary reference The Timken Corporation |
| FFB187/01-299 | 2/2 Government specification standardization U.S. Government activity |
NSN 3110-01-183-8374 is a Bearing,roller,tapered, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-183-8374: Lubrication Material: OIL LUBRICATING; Cup Width: 0.5313 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Material Document and Classification: F-B-187 FED SPEC 5TH MATERIAL RESPONSE OVERALL. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.