The Bolt,square Neck, cataloged under National Stock Number 5306-00-207-8567, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-207-8567 |
| Primary Part Number | FFB571TYPEC |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Head Style | BUTTON |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Neck Length | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Nondefinitive Spec/std Data | C2 TYPE AND C CLASS |
| Neck Width | 0.300 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 18 |
| Thread Direction | RIGHT-HAND |
| Head Diameter | 0.688 INCHES NOMINAL IN |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB571TYPEC | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 70-5-6 | Air Force Standard |
NSN 5306-00-207-8567 is a Bolt,square Neck, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-207-8567 has 2 cross-referenced part numbers: FFB571TYPEC (Federal Specifications Promulgated by General Services Administration Washington DC), 70-5-6 (Air Force Standard).
There are 12 known substitutes for 5306-00-207-8567: 5306-00-136-9986, 5306-00-207-8137, 5310-00-208-3146 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571TYPEC: Head Height: 0.156 INCHES NOMINAL IN; Thread Class: 2A A; Thread Length: 0.375 INCHES MINIMUM IN; Head Style: BUTTON. 16 total characteristics are documented in the Federal Logistics Information System.