The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-01-181-8034, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is General Electric Company. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-181-8034 |
| Primary Part Number | 633A912-001 |
| Item Name | Roller,linear-Rotary Motion |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Hub Diameter | 3.250 INCHES NOMINAL IN |
| Bore Length | 1.719 INCHES NOMINAL IN |
| Style Designator | PLAIN, PROTRUDING HUBS |
| Material Document and Classification | QQ-S-763, CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL COMP 410 |
| Face Width | 1.500 INCHES NOMINAL IN |
| Metallic Hardness Rating | 33.0 MINIMUM ROCKWELL C AND 38.0 MAXIMUM ROCKWELL C |
| Bore Inside Diameter | 2.249 INCHES MINIMUM AND 2.250 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 |
|---|---|
| 7303E32 PIECE 22 | General Electric Company (USA) |
| 633A912-001 PRIMARY | General Electric Company (USA) |
NSN 3120-01-181-8034 is a Roller,linear-Rotary Motion, manufactured by General Electric Company, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-181-8034 has 2 manufacturer part numbers on file: 7303E32 PIECE 22 (General Electric Company), 633A912-001 (General Electric Company).
Key specifications for 633A912-001: Hub Diameter: 3.250 INCHES NOMINAL IN; Bore Length: 1.719 INCHES NOMINAL IN; Style Designator: PLAIN, PROTRUDING HUBS; Material Document and Classification: QQ-S-763, CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE. 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.