The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-781-9916, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 16 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 | 5310-00-781-9916 |
| Primary Part Number | 300-524095 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Width Across Flats | 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN |
| Thread Series | UNEF |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.688 INCHES IN |
| Nut Height | 0.375 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.070 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Countersink Angle | 90.0 DEGREES NOMINAL BOTH ENDS |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Bearing Surface Type | CHAMFERED |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| 300-524095 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-00-781-9916 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-781-9916 has 1 manufacturer part number on file: 300-524095 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 300-524095: Width Across Flats: 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN; Thread Series: UNEF; Hole Configuration Style: CONFIGURATION B; Material Document and Classification: QQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 16 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.