The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-810-3301, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3120-00-810-3301 |
| Primary Part Number | HSB6SS |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | U S Bearings |
| Status | ACTIVE |
| Inner Member Width | 0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN |
| Outer Member Width | 0.3170 INCHES NOMINAL IN |
| Style Designator | WITHOUT INSERT OR LINER |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER |
| Surface Treatment | CADMIUM OUTER RACE MEMBER |
| Surface Treatment | CHROMIUM INNER MEMBER |
| Bore Diameter | 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Material | STEEL OUTER RACE MEMBER |
| Material | STEEL COMP E52100 INNER MEMBER |
| Outer Member Outside Diameter | 0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM 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 |
|---|---|
| HSB6SS PRIMARY | U S Bearings (USA) |
| Reference | Meaning |
|---|---|
| SBG6SS | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
| BSSN6003 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-00-810-3301 is a Bearing,plain,self-Aligning, manufactured by U S Bearings, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-810-3301 has 1 manufacturer part number on file: HSB6SS (U S Bearings).
Key specifications for HSB6SS: Inner Member Width: 0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN; Outer Member Width: 0.3170 INCHES NOMINAL IN; Style Designator: WITHOUT INSERT OR LINER; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER. 10 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.