The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-227-4591, 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 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-227-4591 |
| Primary Part Number | AA59649-548 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Cup Width | 1.4375 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 5.3850 INCHES NOMINAL IN |
| Backface Corner Radius | 0.1250 INCHES NOMINAL IN |
| Cone Corner Radius | 0.1400 INCHES NOMINAL IN |
| Standout Width | 0.3750 INCHES NOMINAL IN |
| Cone Width | 1.8125 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 |
|---|---|
| AA59649-548 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A59649-548 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| H715345PW3/H77153#02 | 5/1 Secondary reference Ntn Bearing Corporation of America |
| A-A-59649 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| HN1309REVAITEM54 | 5/9 Secondary reference Usm Corp Sub of Emhart Industries Inc Farrel Co Div |
| H715345H715311 | 5/1 Secondary reference The Timken Corporation |
| 4200-3182590REVAITEM54 | 5/1 Secondary reference U.S. Government activity |
NSN 3110-00-227-4591 is a Bearing,roller,tapered, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-227-4591 has 1 manufacturer part number on file: AA59649-548 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for AA59649-548: Retainer Fabrication Method: PRESSED; Cup Width: 1.4375 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 1.8125 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.