The Cone and Rollers,tapered Roller, cataloged under National Stock Number 3110-00-278-7253, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-278-7253 |
| Primary Part Number | HM813849 |
| Item Name | Cone and Rollers,tapered Roller |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Style Designator | NORMAL ANGLE |
| Cone Corner Radius | 0.1400 INCHES NOMINAL IN |
| Cone Width | 1.4375 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 2.8125 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 |
| Part Number | Manufacturer |
|---|---|
| HM813849 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1305372 | 5/9 Secondary reference Clark Equipment Co |
| 1305372 | 5/2 Secondary reference U.S. Government activity |
| 5L2030 | C/1 Advisory reference — outside the item-of-supply concept Caterpillar Inc Div Caterpillar Defense |
| BRTAK1 | 5/9 Secondary reference Barber-Greene Co |
| BRTAK1 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| HM813849 | 5/9 Secondary reference Country Caterers Bbq Inc. Dba Country Caterer's Use CAGE Code 0mm69 for Cataloging |
NSN 3110-00-278-7253 is a Cone and Rollers,tapered Roller, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-278-7253 has 1 manufacturer part number on file: HM813849 (The Timken Corporation).
Key specifications for HM813849: Style Designator: NORMAL ANGLE; Cone Corner Radius: 0.1400 INCHES NOMINAL IN; Cone Width: 1.4375 INCHES NOMINAL IN; Special Features: DUTY CLASS HM SERIES. 6 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.