The Bolt,square Neck, cataloged under National Stock Number 5306-00-263-7328, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Air Corps Standards Under Custodianiship of the Air Force. Government technical data includes 16 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-263-7328 |
| Primary Part Number | 70-6-12 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Air Corps Standards Under Custodianiship of the Air Force |
| Status | ACTIVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Neck Width | 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 16 |
| Minimum Tensile Strength | 48000 POUNDS PER SQUARE INCH LBS |
| Head Style | BUTTON |
| Head Height | 0.188 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Head Diameter | 0.812 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES MINIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Neck Length | 0.188 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Material | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP M1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1137 OVERALL |
| Nondefinitive Spec/std Data | C2 TYPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 70-6-12 | Air Corps Standards Under Custodianiship of the Air Force |
NSN 5306-00-263-7328 is a Bolt,square Neck, manufactured by Air Corps Standards Under Custodianiship of the Air Force, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-263-7328 has 1 cross-referenced part number: 70-6-12 (Air Corps Standards Under Custodianiship of the Air Force).
There are 4 known substitutes for 5306-00-263-7328: 5306-00-207-8137, 5310-00-006-4775, 5940-00-880-6988 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 70-6-12: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Neck Width: 0.368 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN; Thread Quantity Per Inch: 16. 17 total characteristics are documented in the Federal Logistics Information System.