The Housing,bearing Unit, cataloged under National Stock Number 3130-00-692-6129, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-692-6129 |
| Primary Part Number | 8331938 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Housing Width | 4.7500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN |
| Height From Bottom of Base to Bore Centerline | 3.0000 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 |
|---|---|
| 8331938 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| M305893 | 5/9 Secondary reference Spalla Inc |
NSN 3130-00-692-6129 is a Housing,bearing Unit, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-692-6129 has 1 manufacturer part number on file: 8331938 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8331938: Housing Width: 4.7500 INCHES NOMINAL IN; Shaft End Type: OPEN; Bore Diameter: 2.7360 INCHES MINIMUM AND 2.7420 INCHES MAXIMUM IN; Height From Bottom of Base to Bore Centerline: 3.0000 INCHES NOMINAL IN. 4 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.