The Housing,bearing Unit, cataloged under National Stock Number 3130-00-920-8256, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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 | 3130-00-920-8256 |
| Primary Part Number | 3D5457 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flange Thickness | 0.3125 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Style Designator | FLANGE BLOCK |
| Mounting Hole Diameter | 0.5312 INCHES NOMINAL IN |
| Bolt Circle Diameter | 10.0000 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 6.6940 INCHES NOMINAL IN |
| Material | IRON MALLEABLE OVERALL |
| Housing Length | 2.0937 INCHES NOMINAL IN |
| Housing Diameter | 11.6250 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 |
|---|---|
| 3D5457 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3130-00-920-8256 is a Housing,bearing Unit, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-920-8256 has 1 manufacturer part number on file: 3D5457 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3D5457: Flange Thickness: 0.3125 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Style Designator: FLANGE BLOCK; Mounting Hole Diameter: 0.5312 INCHES NOMINAL IN. 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.