The Bolt,machine, cataloged under National Stock Number 5306-00-281-8922, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-281-8922 |
| Primary Part Number | FFB571 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Quantity Per Inch | 20 |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Head Height | 0.172 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Features Provided | FINISHED HEAD |
| Width Between Flats | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.750 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-281-8922 is a Bolt,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-281-8922 has 2 cross-referenced part numbers: FFB571 (Federal Specifications Promulgated by General Services Administration Washington DC), 65-4-10 (Department of the Air Force).
There are 2 known substitutes for 5306-00-281-8922: 5306-00-582-5952, 5995-01-724-4945. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Fastener Length: 1.000 INCHES NOMINAL IN; Head Style: HEXAGON; Thread Quantity Per Inch: 20. 15 total characteristics are documented in the Federal Logistics Information System.