The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-01-010-2141, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-010-2141 |
| Primary Part Number | 870-0137 |
| Item Name | Nut,plain,castellated,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cummins Power Generation Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.498 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Height | 0.346 INCHES NOMINAL IN |
| Nut Style | CASTELLATED, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| 870-0137 PRIMARY | Cummins Power Generation Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5310010102141 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5310-01-010-2141 is a Nut,plain,castellated,hexagon, manufactured by Cummins Power Generation Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-010-2141 has 1 manufacturer part number on file: 870-0137 (Cummins Power Generation Inc.).
Key specifications for 870-0137: Width Across Flats: 0.498 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.312 INCHES IN. 10 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.