The Nut,plain,round, cataloged under National Stock Number 5310-01-331-1592, 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 13 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 | 5310-01-331-1592 |
| Primary Part Number | 5820318 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Supplementary Features | AFTERBODY SECTION,TORPEDO MK50 |
| Material Document and Classification | QQ-S-763 CL300 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.128 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Diameter | 0.998 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Nut Thickness | 0.375 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 5820318 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-331-1592 is a Nut,plain,round, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-331-1592 has 1 manufacturer part number on file: 5820318 (Naval Sea Systems Command).
Key specifications for 5820318: Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Supplementary Features: AFTERBODY SECTION,TORPEDO MK50; Material Document and Classification: QQ-S-763 CL300 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.128 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN. 13 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.