The Bolt,machine, cataloged under National Stock Number 5306-00-637-8797, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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 | 5306-00-637-8797 |
| 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 |
| Material | STEEL OVERALL |
| Thread Quantity Per Inch | 16 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND PHOSPHATE OR PHOSPHATE OVERALL |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Class | 2A A |
| Head Height | 0.234 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Width Between Flats | 0.544 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN |
| Features Provided | FINISHED HEAD |
| Nondefinitive Spec/std Data | B-2 TYPE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB571TYPEB2 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FFB575TYPE3GR1 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5306-00-637-8797 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 5306-00-637-8797 has 2 cross-referenced part numbers: FFB571TYPEB2 (Federal Specifications Promulgated by General Services Administration Washington DC), FFB575TYPE3GR1 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 12 known substitutes for 5306-00-637-8797: 5306-00-141-2883, 5306-00-680-7219, 5306-00-141-2843 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571TYPEB2: Material: STEEL OVERALL; Thread Quantity Per Inch: 16; Thread Direction: RIGHT-HAND; Surface Treatment: ZINC AND PHOSPHATE OR PHOSPHATE OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.