The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-425-9703, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-425-9703 |
| Primary Part Number | 31330X |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Cup Width | 50.0 MILLIMETERS NOMINAL MM |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 320.0 MILLIMETERS NOMINAL MM |
| Backface Corner Radius | 4.0 MILLIMETERS NOMINAL MM |
| Cone Corner Radius | 5.0 MILLIMETERS NOMINAL MM |
| Standout Width | 32.0 MILLIMETERS NOMINAL MM |
| Cone Width | 75.0 MILLIMETERS NOMINAL MM |
| Bore Diameter | 150.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 31330X PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 983851 IT-40 | 5/1 Secondary reference Kamewa Usa Inc |
NSN 3110-01-425-9703 is a Bearing,roller,tapered, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-425-9703 has 1 manufacturer part number on file: 31330X (Skf Usa Inc.).
Key specifications for 31330X: Cup Width: 50.0 MILLIMETERS NOMINAL MM; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 82.0 MILLIMETERS NOMINAL MM; Overall Outside Diameter: 320.0 MILLIMETERS NOMINAL MM. 9 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.