The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-239-7660, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-239-7660 |
| Primary Part Number | 875443 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Width Across Flats | 1.421 INCHES MINIMUM AND 1.455 INCHES MAXIMUM IN |
| Thread Series | UNEF |
| Hole Configuration Style | CONFIGURATION B |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.250 INCHES IN |
| Nut Height | 0.125 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | ALUMINUM ALLOY 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 |
|---|---|
| 875443 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| 10-123017-187 | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
NSN 5310-00-239-7660 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-239-7660 has 2 manufacturer part numbers on file: 875443 (Naval Inventory Control Point Mechanicsburg), 10-123017-187 (Amphenol Corp Div Amphenol Aerospace Operations).
Key specifications for 875443: Width Across Flats: 1.421 INCHES MINIMUM AND 1.455 INCHES MAXIMUM IN; Thread Series: UNEF; Hole Configuration Style: CONFIGURATION B; Thread Direction: RIGHT-HAND. 14 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.