The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-176-7903, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Department of the Air Force. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-176-7903 |
| Primary Part Number | 330-10 |
| Item Name | Nut,plain,castellated,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Department of the Air Force |
| Status | ACTIVE |
| Width Across Flats | 0.937 INCHES NOMINAL IN |
| Nut Style | CASTELLATED, HEXAGON |
| Nondefinitive Spec/std Data | A4 TYPE |
| Nominal Thread Size | 0.625 INCHES IN |
| Surface Treatment | CADMIUM AND ZINC OVERALL |
| Thread Class | 2B |
| Material | STEEL OVERALL |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Nut Height | 0.731 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 330-10 | Department of the Air Force (USA) |
| USAF330-10 | Department of the Air Force (USA) |
| FFB571TYPEA4 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 330-10 | Air Corps Standards Under Custodianiship of the Air Force |
NSN 5310-00-176-7903 is a Nut,plain,castellated,hexagon, manufactured by Department of the Air Force, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-176-7903 has 4 cross-referenced part numbers: 330-10 (Department of the Air Force), USAF330-10 (Department of the Air Force), FFB571TYPEA4 (Federal Specifications Promulgated by General Services Administration Washington DC), 330-10 (Air Corps Standards Under Custodianiship of the Air Force).
There are 12 known substitutes for 5310-00-176-7903: 5310-00-042-7132, 5440-00-061-8896, 5935-00-079-7348 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 330-10: Width Across Flats: 0.937 INCHES NOMINAL IN; Nut Style: CASTELLATED, HEXAGON; Nondefinitive Spec/std Data: A4 TYPE; Nominal Thread Size: 0.625 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.