The Housing,bearing Unit, cataloged under National Stock Number 3130-01-025-1674, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-025-1674 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Lubrication Fitting Type | HYDRAULIC |
| Housing Height | 5.5000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-367 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Center to Center Distance Between Mounting Holes Along Width | 5.1250 INCHES NOMINAL IN |
| Housing Width | 6.1250 INCHES NOMINAL IN |
| Base Length | 2.5000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 1.3750 INCHES NOMINAL IN |
| Shaft End Type | CLOSED OR OPEN |
| Base Thickness | 0.1700 INCHES MINIMUM IN |
| Bore Diameter | 2.6880 INCHES MINIMUM AND 2.6890 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2014 OVERALL |
| Housing Length | 0.7600 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 3.6900 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 373539-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3130-01-025-1674 is a Housing,bearing Unit, classified under FSC 3130, Bearings, Mounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-597-9104. Verify interchangeability with system specifications before substitution.
Key specifications for 3130-01-025-1674: Lubrication Fitting Type: HYDRAULIC; Housing Height: 5.5000 INCHES NOMINAL IN; Material Document and Classification: QQ-A-367 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Center to Center Distance Between Mounting Holes Along Width: 5.1250 INCHES NOMINAL IN. 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.