The Bearing Unit,plain, cataloged under National Stock Number 3130-00-957-8930, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is De Havilland Aircraft of Canada Limited. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-00-957-8930 |
| Primary Part Number | C4BM1225-3 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| Lubrication Material | GREASE |
| Flange Thickness | 0.1000 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Style Designator | FLANGE BLOCK |
| Material Document and Classification | QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE HOUSING |
| Mounting Hole Diameter | 0.2500 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Bolt Circle Diameter | 2.1000 INCHES NOMINAL IN |
| Shaft End Type | CLOSED |
| Bore Diameter | 0.3750 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 HOUSING |
| Housing Length | 0.4000 INCHES NOMINAL IN |
| Housing Diameter | 2.7000 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM IN |
| Load Capability Type | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C4BM1225-3 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
NSN 3130-00-957-8930 is a Bearing Unit,plain, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-957-8930 has 1 manufacturer part number on file: C4BM1225-3 (De Havilland Aircraft of Canada Limited).
Key specifications for C4BM1225-3: Lubrication Material: GREASE; Flange Thickness: 0.1000 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Style Designator: FLANGE BLOCK. 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.
NSN 3130-00-957-8930 has DEMIL Code B. 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.