The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-331-5494, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is U S Bearings. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-331-5494 |
| Primary Part Number | HSP8-158 |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | U S Bearings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | A50TF147 CL-A FED STD SINGLE TREATMENT RESPONSE OUTER RACE MEMBER |
| Inner Member Width | 0.6950 INCHES MINIMUM AND 0.7000 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER |
| Hardness Rating | 43.0 ROCKWELL C NOMINAL INNER MEMBER |
| Outer Member Width | 0.5000 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN |
| Style Designator | WITHOUT INSERT OR LINER |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER |
| Surface Treatment | LUBRICANT DRY FILM OUTER RACE MEMBER |
| Static Radial Load Rating | 30000 POUNDS LBS |
| Bore Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Material | STEEL COMP XM-13 INNER MEMBER |
| Material | STEEL COMP 630 OUTER RACE MEMBER |
| Outer Member Outside Diameter | 1.0001 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1360M71 | General Electric Company (USA) |
| HSP8-158 PRIMARY | U S Bearings (USA) |
| 1360M71P02 | General Electric Company (USA) |
| 1360M71P02 PRIMARY | U S Bearings (USA) |
NSN 3120-01-331-5494 is a Bearing,plain,self-Aligning, manufactured by U S Bearings, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-331-5494 has 4 manufacturer part numbers on file: 1360M71 (General Electric Company), HSP8-158 (U S Bearings), 1360M71P02 (General Electric Company), 1360M71P02 (U S Bearings).
Key specifications for HSP8-158: Surface Treatment Document and Classification: A50TF147 CL-A FED STD SINGLE TREATMENT RESPONSE OUTER RACE MEMBER; Inner Member Width: 0.6950 INCHES MINIMUM AND 0.7000 INCHES MAXIMUM IN; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER; Hardness Rating: 43.0 ROCKWELL C NOMINAL INNER MEMBER. 14 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.