The Bearing Unit,plain, cataloged under National Stock Number 3130-00-426-3552, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-00-426-3552 |
| Primary Part Number | 1F8873 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Flange Thickness | 0.3380 INCHES NOMINAL IN |
| Style Designator | FLANGE BLOCK |
| Mounting Hole Diameter | 0.4000 INCHES NOMINAL IN |
| Features Provided | REMOVABLE LINER |
| Alignment Type | RIGID |
| Bolt Circle Diameter | 4.8750 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 2.1250 INCHES NOMINAL IN |
| Material | STEEL HOUSING |
| Housing Length | 2.8800 INCHES NOMINAL IN |
| Housing Diameter | 3.6250 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 |
| Part Number | Manufacturer |
|---|---|
| 1F8873 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3130-00-426-3552 is a Bearing Unit,plain, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-426-3552 has 1 manufacturer part number on file: 1F8873 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 1F8873: Flange Thickness: 0.3380 INCHES NOMINAL IN; Style Designator: FLANGE BLOCK; Mounting Hole Diameter: 0.4000 INCHES NOMINAL IN; Features Provided: REMOVABLE LINER. 12 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.