The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-680-6528, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-680-6528 |
| Primary Part Number | 7019025 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Width Across Flats | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Precious Material | SILVER |
| Material Document and Classification | Q-B-611 FED SPEC 13TH MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Nut Height | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | COPPER ALLOY 360 OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 7019025 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 7019025P1 | 3/9 Design control — primary reference Lockheed Martin Corporation Div Rms |
| 7019025P1 | 5/9 Secondary reference General Electric Company |
NSN 5310-00-680-6528 is a Nut,plain,hexagon, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-680-6528 has 1 manufacturer part number on file: 7019025 (Lockheed Martin Corporation Div Rms).
Key specifications for 7019025: Width Across Flats: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN; Thread Series: UNF; Precious Material: SILVER; Material Document and Classification: Q-B-611 FED SPEC 13TH MATERIAL RESPONSE OVERALL. 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.