The Housing,bearing Unit, cataloged under National Stock Number 3130-01-258-4744, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-258-4744 |
| Primary Part Number | 74A731061-2001 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Assembly Overall Length | 0.9690 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | PS 13201 TYPE 2,CLASS 1,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE BORE |
| Surface Treatment Document and Classification | PS 13630,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE HOUSING EXCLUDING BORE |
| Mounting Slot Length | 0.440 INCHES NOMINAL IN |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Mounting Hole Type | SLOTTED |
| Style Designator | FLANGE BLOCK |
| Material Document and Classification | QQ-A-225/9,COND T7351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Circle Diameter | 3.000 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE BORE |
| Surface Treatment | ENAMEL HOUSING EXCLUDING BORE |
| Bore Diameter | 1.3800 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Housing Length | 0.761 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN |
| Housing Diameter | 1.875 INCHES NOMINAL IN |
| Mounting Slot Width | 0.320 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 74A731061-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74A731061-2001 | 3/9 Design control — primary reference U.S. Government activity |
| 10110469 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A731061-2001 | 5/9 Secondary reference The Boeing Company |
NSN 3130-01-258-4744 is a Housing,bearing Unit, manufactured by The Boeing Company Div Defense, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-258-4744 has 1 manufacturer part number on file: 74A731061-2001 (The Boeing Company Div Defense).
Key specifications for 74A731061-2001: Assembly Overall Length: 0.9690 INCHES NOMINAL IN; Surface Treatment Document and Classification: PS 13201 TYPE 2,CLASS 1,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE BORE; Surface Treatment Document and Classification: PS 13630,CAGE 76301 MFR REF SINGLE TREATMENT RESPONSE HOUSING EXCLUDING BORE; Mounting Slot Length: 0.440 INCHES NOMINAL IN. 16 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.
NSN 3130-01-258-4744 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.