The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-142-4366, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-142-4366 |
| Primary Part Number | 6B4851 |
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flange Outside Diameter | 9.3710 INCHES NOMINAL IN |
| Style Designator | NORMAL ANGLE, FLANGED |
| Backface Corner Radius | 0.1250 INCHES NOMINAL IN |
| Flange Width | 0.3750 INCHES NOMINAL IN |
| Outer Ring Outside Diameter | 9.0000 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 6B4851 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 892B | 5/9 Secondary reference The Timken Corporation |
| 892B | 5/9 Secondary reference Federal-Mogul Corp Government Sales Dept |
NSN 3110-00-142-4366 is a Cup,tapered Roller Bearing, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-142-4366 has 1 manufacturer part number on file: 6B4851 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 4310-00-398-9179. Verify interchangeability with system specifications before substitution.
Key specifications for 6B4851: Flange Outside Diameter: 9.3710 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE, FLANGED; Overall Width: 1.7500 INCHES NOMINAL IN; Backface Corner Radius: 0.1250 INCHES NOMINAL IN. 7 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.