The Bolt,machine, cataloged under National Stock Number 5306-00-144-3700, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 20 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 | 5306-00-144-3700 |
| Primary Part Number | AN3-74 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Aeronautical Standards Group Dept of Navy and Air Force |
| Status | ACTIVE |
| Head Style | HEXAGON |
| Width Between Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Head Height | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Length | 0.406 INCHES MINIMUM IN |
| Material | STEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 7.391 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | MIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM FIRST HOLE IN |
| Fastener Length | 7.531 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Grip Length | 7.125 INCHES NOMINAL IN |
| Features Provided | FINISHED HEAD |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-144-3700 is a Bolt,machine, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-144-3700 has 2 cross-referenced part numbers: AN3-74 (Aeronautical Standards Group Dept of Navy and Air Force), B6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 12 known substitutes for 5306-00-144-3700: 5306-00-141-4507, 5306-00-151-1062, 5306-00-151-1063 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN3-74: Head Style: HEXAGON; Width Between Flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Head Height: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES IN. 20 total characteristics are documented in the Federal Logistics Information System.