The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-438-3394, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-438-3394 |
| Primary Part Number | 581-6405749 AHDA FN B50 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 581-6405749 AHDA FN B50 PRIMARY | The Timken Corporation (USA) |
| 218016505 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 581-6405749 AHDA FN B50 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 3110-01-438-3394 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-438-3394 has 2 manufacturer part numbers on file: 581-6405749 AHDA FN B50 (The Timken Corporation), 218016505 (Naval Sea Systems Command).
Key specifications for 581-6405749 AHDA FN B50: Special Features: BEARING,ROLLER,TAPERED. 0 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.