The Housing,bearing Unit, cataloged under National Stock Number 3130-01-222-6970, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3130-01-222-6970 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Housing Height | 9.250 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 1.188 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Width | 7.500 INCHES NOMINAL IN |
| Housing Width | 10.250 INCHES NOMINAL IN |
| Base Length | 2.760 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Base Thickness | 4.000 INCHES NOMINAL4.000 INCHES NOMINAL IN |
| Bore Diameter | 2.8470 INCHES MINIMUM AND 2.8480 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY 400 OVERALL |
| Housing Length | 2.750 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 4.000 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 |
|---|---|
| 123-4775391 ITEM 4 AND 5 | 3/2 Design control — primary reference U.S. Government activity |
| 87547-1124 ITEM 4 AND 5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3130-01-222-6970 is a Housing,bearing Unit, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-222-6970: Housing Height: 9.250 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Mounting Hole Diameter: 1.188 INCHES NOMINAL IN. 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.