The Bearing Unit,plain, cataloged under National Stock Number 3130-00-449-5291, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-449-5291 |
| Primary Part Number | 3278370 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Housing Height | 2.2500 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Diameter | 0.5000 INCHES NOMINAL IN |
| Housing Width | 1.7500 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Shaft End Type | OPEN |
| Housing Length | 6.3750 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 |
|---|---|
| 3278370 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3278370 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 3130-00-449-5291 is a Bearing Unit,plain, manufactured by Hatch & Kirk, Inc., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-449-5291 has 1 manufacturer part number on file: 3278370 (Hatch & Kirk, Inc.).
Key specifications for 3278370: Housing Height: 2.2500 INCHES NOMINAL IN; Mounting Hole Type: ROUND, UNTHREADED; Mounting Hole Diameter: 0.5000 INCHES NOMINAL IN; Housing Width: 1.7500 INCHES NOMINAL IN. 7 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.