The Bolt,machine, cataloged under National Stock Number 5306-00-141-2931, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-141-2931 |
| Primary Part Number | FFB571TYPEB2 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Width Between Flats | 0.363 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Surface Treatment | CADMIUM OVERALL |
| Nondefinitive Spec/std Data | B2 TYPE |
| Thread Class | 2A A |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Grip Length | 1.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Features Provided | FINISHED HEAD |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | FF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB571TYPEB2 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5306-00-141-2931 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 5306-00-141-2931 has 1 cross-referenced part number: FFB571TYPEB2 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 5306-00-141-2931: 5306-00-141-2929, 5306-00-206-4772, 5306-00-206-4779 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571TYPEB2: Width Between Flats: 0.363 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Head Style: HEXAGON; Surface Treatment: CADMIUM OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.