The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-207-7700, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-207-7700 |
| Primary Part Number | HM88630 AND HM88610 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Cup Width | 0.7812 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 2.8438 INCHES NOMINAL IN |
| Backface Corner Radius | 0.0900 INCHES NOMINAL IN |
| Cone Corner Radius | 0.0300 INCHES NOMINAL IN |
| Standout Width | 0.2188 INCHES NOMINAL IN |
| Cone Width | 1.0000 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 1.0000 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 |
|---|---|
| HM88630 AND HM88610 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| 904-00310 | 5/9 Secondary reference Taylor-Dunn Corporation Dba Metro Crown International |
NSN 3110-01-207-7700 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-207-7700 has 1 manufacturer part number on file: HM88630 AND HM88610 (The Timken Corporation).
Key specifications for HM88630 AND HM88610: Retainer Fabrication Method: PRESSED; Cup Width: 0.7812 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 1.0000 INCHES NOMINAL IN. 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.