The Housing,bearing Unit, cataloged under National Stock Number 3130-01-298-0666, 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15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-298-0666 |
| Item Name | Housing,bearing Unit |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Assembly Overall Length | 0.875 INCHES NOMINAL IN |
| Housing Height | 3.000 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, THREADED, COUNTERBORED |
| Counterbore Depth | 0.125 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Width | 2.875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES IN |
| Counterbore Diameter | 0.625 INCHES NOMINAL IN |
| Housing Width | 4.000 INCHES NOMINAL IN |
| Base Length | 0.500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Thread Quantity Per Inch | 13 |
| Bore Diameter | 2.0600 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Height From Bottom of Base to Bore Centerline | 1.500 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 |
|---|---|
| 402292 | 3/9 Design control — primary reference Big Joe Mfg Co |
NSN 3130-01-298-0666 is a Housing,bearing Unit, classified under FSC 3130, Bearings, Mounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5315-01-654-7574. Verify interchangeability with system specifications before substitution.
Key specifications for 3130-01-298-0666: Assembly Overall Length: 0.875 INCHES NOMINAL IN; Housing Height: 3.000 INCHES NOMINAL IN; Mounting Hole Type: ROUND, THREADED, COUNTERBORED; Counterbore Depth: 0.125 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.