The Nut,plain,knurled, cataloged under National Stock Number 5310-01-116-6640, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems. Government technical data includes 12 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 | 5310-01-116-6640 |
| Primary Part Number | 3150260-694-7 |
| Item Name | Nut,plain,knurled |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
| Status | ACTIVE |
| Thread Series | UNF |
| Nut Counterbore Depth | 0.100 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.073 INCHES IN |
| Nut Diameter | 0.437 INCHES NOMINAL IN |
| Counterbore Diameter | 0.100 INCHES NOMINAL NUT IN |
| Nut Thickness | 0.218 INCHES NOMINAL IN |
| Countersink Angle | 10.0 DEGREES NOMINAL NUT |
| Nut Style | KNURLED |
| Thread Class | 2B |
| Thread Quantity Per Inch | 72 |
| Material | STEEL COMP 303 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 |
|---|---|
| 3150260-694-7 PRIMARY | Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (USA) |
NSN 5310-01-116-6640 is a Nut,plain,knurled, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-116-6640 has 1 manufacturer part number on file: 3150260-694-7 (Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems).
Key specifications for 3150260-694-7: Thread Series: UNF; Nut Counterbore Depth: 0.100 INCHES NOMINAL NUT IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.073 INCHES IN. 12 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.