The Cone and Rollers,tapered Roller, cataloged under National Stock Number 3110-01-665-1682, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-665-1682 |
| Primary Part Number | 31310M |
| Item Name | Cone and Rollers,tapered Roller |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Style Designator | NORMAL ANGLE |
| Cone Corner Radius | 0.1 MILLIMETERS NOMINAL MM |
| Cone Width | 27.0 MILLIMETERS NOMINAL MM |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 50.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 31310M PRIMARY | The Timken Corporation (USA) |
| 31310M PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 59307-88-3 REV A | D/9 Drawing number reference only U.S. Government activity |
| 59307-88-3 | 5/2 Secondary reference U.S. Government activity |
NSN 3110-01-665-1682 is a Cone and Rollers,tapered Roller, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-665-1682 has 2 manufacturer part numbers on file: 31310M (The Timken Corporation), 31310M (Mpb Corporation Dba Mpb Corp).
Key specifications for 31310M: Retainer Fabrication Method: PRESSED; Style Designator: NORMAL ANGLE; Cone Corner Radius: 0.1 MILLIMETERS NOMINAL MM; Cone Width: 27.0 MILLIMETERS NOMINAL MM. 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.