The Nut,plain,round, cataloged under National Stock Number 5310-01-426-2591, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-426-2591 |
| Primary Part Number | 167-6404625 FIND 47 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Diameter | 0.778 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Nut Thickness | 0.380 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | COPPER ALLOY 464 OVERALL |
| 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 |
|---|---|
| 167-6404625 FIND 47 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-426-2591 is a Nut,plain,round, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-426-2591 has 1 manufacturer part number on file: 167-6404625 FIND 47 (Naval Sea Systems Command).
Key specifications for 167-6404625 FIND 47: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 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.