The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-488-3866, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-488-3866 |
| Primary Part Number | AA59649-237B |
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Style Designator | NORMAL ANGLE |
| Outside Diameter | 7.5000 INCHES NOMINAL IN |
| Backface Corner Radius | 0.0600 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 |
|---|---|
| AA59649-237B | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| HM624710 | 5/1 Secondary reference The Timken Corporation |
| 93394 | 5/9 Secondary reference Fwd Seagrave Holdings Lp |
| A-A-59649 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 3110-00-488-3866 is a Cup,tapered Roller Bearing, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-488-3866 has 1 manufacturer part number on file: AA59649-237B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for AA59649-237B: Style Designator: NORMAL ANGLE; Overall Width: 1.3750 INCHES NOMINAL IN; Outside Diameter: 7.5000 INCHES NOMINAL IN; Backface Corner Radius: 0.0600 INCHES NOMINAL IN. 5 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.