The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-839-0145, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-839-0145 |
| Primary Part Number | 121WSM10057-1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Series | UNF |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Nut Height | 0.250 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.046 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP E4340 OVERALL |
| Bearing Surface Type | FLAT |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| 121WSM10057-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5310-00-839-0145 is a Nut,plain,hexagon, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-839-0145 has 1 manufacturer part number on file: 121WSM10057-1 (Northrop Grumman Systems Corporation).
Key specifications for 121WSM10057-1: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Series: UNF; Hole Configuration Style: CONFIGURATION B; Material Document and Classification: MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.