The Bearing Unit,plain, cataloged under National Stock Number 3130-01-412-5611, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-412-5611 |
| Primary Part Number | 4X818 |
| Item Name | Bearing Unit,plain |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Lubrication Material | OIL |
| Lubrication Fitting Type | CUP |
| Assembly Overall Length | 1.1250 INCHES NOMINAL IN |
| Flange Thickness | 0.1250 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Diameter | 0.4375 INCHES NOMINAL IN |
| Overall Outside Diameter | 4.3750 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Bolt Circle Diameter | 3.3750 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 1.0000 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Housing Diameter | 2.7500 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 4X818 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| S/W 1100-5 | 3/9 Design control — primary reference S/w Manufacturing Co Inc Dba Commercial Electric Co Div S/w Enterprises |
NSN 3130-01-412-5611 is a Bearing Unit,plain, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-412-5611 has 1 manufacturer part number on file: 4X818 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 4X818: Lubrication Material: OIL; Lubrication Fitting Type: CUP; Assembly Overall Length: 1.1250 INCHES NOMINAL IN; Flange Thickness: 0.1250 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.