The Bolt,square Neck, cataloged under National Stock Number 5306-00-207-8137, is classified within Federal Supply Class 5306 (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 14 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-207-8137 |
| Primary Part Number | 70-6-12 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Department of the Air Force |
| Status | ACTIVE |
| Fastener Length | 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Thread Length | 0.625 INCHES MINIMUM IN |
| Thread Class | 2A A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Neck Length | 0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Thread Quantity Per Inch | 16 |
| Head Height | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Neck Width | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Head Diameter | 0.803 INCHES MINIMUM AND 0.823 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | BUTTON |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | ACTIVE |
| Successor | 5306-00-263-7328 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 70-6-12 | Department of the Air Force (USA) |
| FFB571TYPEC | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5306-00-207-8137 is a Bolt,square Neck, manufactured by Department of the Air Force, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-207-8137 has 2 cross-referenced part numbers: 70-6-12 (Department of the Air Force), FFB571TYPEC (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 5 known substitutes for 5306-00-207-8137: 5306-00-263-7328, 5310-00-006-4775, 5306-00-207-8567 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 70-6-12: Fastener Length: 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN; Thread Length: 0.625 INCHES MINIMUM IN; Thread Class: 2A A; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 15 total characteristics are documented in the Federal Logistics Information System.