The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-525-9768, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kidde Fire Fighting, Inc. Div National Foam. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-525-9768 |
| Primary Part Number | 3220-7063-5 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kidde Fire Fighting, Inc. Div National Foam |
| Status | ACTIVE |
| Width Across Flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Height | 0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 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 |
|---|---|
| 93604172 | Kidde Fire Fighting, Inc. Div National Foam (USA) |
| 3220-7063-5 | Atap Inc (USA) |
| 3220-7063-5 PRIMARY | Kidde Fire Fighting, Inc. Div National Foam (USA) |
NSN 5310-01-525-9768 is a Nut,plain,hexagon, manufactured by Kidde Fire Fighting, Inc. Div National Foam, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-525-9768 has 3 manufacturer part numbers on file: 93604172 (Kidde Fire Fighting, Inc. Div National Foam), 3220-7063-5 (Atap Inc), 3220-7063-5 (Kidde Fire Fighting, Inc. Div National Foam).
Key specifications for 3220-7063-5: Width Across Flats: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Series: UNF; Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL; Thread Direction: RIGHT-HAND. 11 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.