The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-481-5140, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bath Iron Works Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-5140 |
| Primary Part Number | 8100-1256-0262 PT NO 255 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637A,ALY464 FED SPEC 2ND MATERIAL RESPONSE OVERALL A |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.500 INCHES IN |
| Nut Style | HEXAGON |
| Material | COPPER ALLOY 464 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 |
|---|---|
| 8100-1256-0262 PT NO 255 PRIMARY | Bath Iron Works Corporation (USA) |
NSN 5310-01-481-5140 is a Nut,plain,hexagon, manufactured by Bath Iron Works Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-5140 has 1 manufacturer part number on file: 8100-1256-0262 PT NO 255 (Bath Iron Works Corporation).
Key specifications for 8100-1256-0262 PT NO 255: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637A,ALY464 FED SPEC 2ND MATERIAL RESPONSE OVERALL A; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.500 INCHES 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.