The Housing,bearing Unit, cataloged under National Stock Number 3130-01-216-5785, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-216-5785 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Assembly Overall Length | 0.744 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN |
| Flange Thickness | 0.312 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Style Designator | FLANGE BLOCK |
| Material Document and Classification | MIL-M-16576 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.437 INCHES NOMINAL IN |
| Overall Outside Diameter | 3.500 INCHES NOMINAL IN |
| Bolt Circle Diameter | 2.500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 903 OVERALL |
| Housing Length | 0.312 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Housing Diameter | 1.750 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 |
| Reference | Meaning |
|---|---|
| 77766-23X2 PIECE 7 | 3/2 Design control — primary reference U.S. Government activity |
| SSN637-513-2144276 PIECE 7 | 5/2 Secondary reference U.S. Government activity |
NSN 3130-01-216-5785 is a Housing,bearing Unit, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-216-5785: Assembly Overall Length: 0.744 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN; Flange Thickness: 0.312 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Mounting Hole Type: ROUND, UNTHREADED; Style Designator: FLANGE BLOCK. 13 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.