The Nut,plain,cap, cataloged under National Stock Number 5310-00-088-0571, 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 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 | 5310-00-088-0571 |
| Primary Part Number | 300-524087 |
| Item Name | Nut,plain,cap |
| 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 |
| 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 | 0.655 INCHES NOMINAL IN |
| Countersink Angle | 90.0 DEGREES NOMINAL FIRST END |
| Nut Style | CAP |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 300-524087 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-00-088-0571 is a Nut,plain,cap, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-088-0571 has 1 manufacturer part number on file: 300-524087 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 300-524087: Width Across Flats: 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN; Thread Series: UNEF; Material Document and Classification: QQ-A-225/8 T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 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.