The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-348-8521, 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 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-348-8521 |
| Primary Part Number | 4A/ AND 6 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | STAMPED |
| Lubrication Material | GREASE |
| Cup Width | 0.3750 INCHES NOMINAL IN |
| Criticality Code Justification | ABXV AND ADGA |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 1.7500 INCHES MINIMUM AND 1.7510 INCHES MAXIMUM IN |
| Backface Corner Radius | 0.0620 INCHES NOMINAL IN |
| Cone Corner Radius | 0.0620 INCHES NOMINAL IN |
| Standout Width | 0.1250 INCHES NOMINAL IN |
| Cone Width | 0.5000 INCHES NOMINAL IN |
| Bore Diameter | 0.7500 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 4A/ AND 6 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2994937 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 8726814 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3110-00-348-8521 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-348-8521 has 1 manufacturer part number on file: 4A/ AND 6 (The Timken Corporation).
Key specifications for 4A/ AND 6: Retainer Fabrication Method: STAMPED; Lubrication Material: GREASE; Cup Width: 0.3750 INCHES NOMINAL IN; Criticality Code Justification: ABXV AND ADGA. 12 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.