The Housing,bearing Unit, cataloged under National Stock Number 3130-01-303-3952, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-303-3952 |
| Primary Part Number | 845031B4007 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
| Status | ACTIVE |
| Assembly Overall Length | 9.930 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Material Document and Classification | ASTM A48 ASSN STD ALL MATERIAL RESPONSES HOUSING |
| Mounting Hole Diameter | 0.500 INCHES NOMINAL IN |
| Pilot Diameter | 6.999 INCHES MINIMUM AND 7.001 INCHES MAXIMUM IN |
| Bolt Circle Diameter | 7.750 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 3.9365 INCHES MINIMUM AND 3.9379 INCHES MAXIMUM IN |
| Material | IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101 HOUSING |
| Housing Diameter | 17.750 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 |
|---|---|
| 845031B4007 PRIMARY | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA) |
| Reference | Meaning |
|---|---|
| 76966 | 5/9 Secondary reference U.S. Government activity |
NSN 3130-01-303-3952 is a Housing,bearing Unit, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-303-3952 has 1 manufacturer part number on file: 845031B4007 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).
Key specifications for 845031B4007: Assembly Overall Length: 9.930 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Material Document and Classification: ASTM A48 ASSN STD ALL MATERIAL RESPONSES HOUSING; Mounting Hole Diameter: 0.500 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.