The Nut,plain,round, cataloged under National Stock Number 5310-01-082-0904, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Leonardo S.p.a. Div Electronics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-082-0904 |
| Primary Part Number | 302158-1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Leonardo S.p.a. Div Electronics |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.112 INCHES IN |
| Nut Diameter | 0.250 INCHES NOMINAL IN |
| Nut Thickness | 0.062 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY 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 |
|---|---|
| 302158-1 | Leonardo S.p.a. Div Electronics (ITA) |
| Reference | Meaning |
|---|---|
| 302158-1 | 3/2 Design control — primary reference U.S. Government activity |
| 302158-1 | 5/9 Secondary reference Fiar Fabbrica Italiana Apparecchiature Radioelettriche Spa |
NSN 5310-01-082-0904 is a Nut,plain,round, manufactured by Leonardo S.p.a. Div Electronics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-082-0904 has 1 manufacturer part number on file: 302158-1 (Leonardo S.p.a. Div Electronics).
Key specifications for 302158-1: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.112 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.