The Bearing Unit,plain, cataloged under National Stock Number 3130-01-225-2222, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-225-2222 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Housing Height | 6.875 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Material Document and Classification | MIL-B-21230,ALLOY 955 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.750 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Width | 3.500 INCHES NOMINAL IN |
| Housing Width | 5.000 INCHES NOMINAL IN |
| Base Length | 5.000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 3.500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Base Thickness | 0.250 INCHES NOMINAL IN |
| Bore Diameter | 1.9850 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Housing Length | 2.995 INCHES MINIMUM AND 2.995 INCHES MINIMUM AND 3.005 INCHES MAXIMUM3.005 INCHES MAXIMUM IN |
| Height From Bottom of Base to Bore Centerline | 4.875 INCHES NOMINAL IN |
| Load Capability Type | RADIAL |
| 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 |
|---|---|
| SSN593-520-1862113 PIECE 36 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3130-01-225-2222 is a Bearing Unit,plain, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-225-2222: Housing Height: 6.875 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Material Document and Classification: MIL-B-21230,ALLOY 955 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Mounting Hole Diameter: 0.750 INCHES NOMINAL IN. 15 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.