The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-660-3379, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-660-3379 |
| Primary Part Number | 540332-121 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Stromberg-Carlson Corp a Plessey Telecommunications Co |
| Status | ACTIVE |
| Width Across Flats | 0.302 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.188 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE NUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | ALUMINUM ALLOY NUT |
| 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 |
|---|---|
| 540332-121 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
| 540332-121 PRIMARY | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| Reference | Meaning |
|---|---|
| NAS1021D06 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-660-3379 is a Nut,self-Locking,hexagon, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-660-3379 has 2 manufacturer part numbers on file: 540332-121 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 540332-121 (Stromberg-Carlson Corp a Plessey Telecommunications Co).
Key specifications for 540332-121: Width Across Flats: 0.302 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Thread Direction: RIGHT-HAND. 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.