The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-144-3711, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5306-00-144-3711 |
| Primary Part Number | AN178-30 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Aeronautical Standards Group Dept of Navy and Air Force |
| Status | CANCELLED |
| Fastener Length | 3.078 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN |
| Head Height | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Grip Diameter | 0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM IN |
| Material | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| Thread Quantity Per Inch | 20 |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Hole Diameter | 0.070 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.905 INCHES MAXIMUM AND 2.937 INCHES MAXIMUM FIRST HOLE IN |
| Width Between Flats | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| Hole Quantity | 1 |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Length | 0.750 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| Grip Length | 2.296 INCHES MINIMUM AND 2.328 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Series Designator | UNF |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MAXIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN |
| Hole Configuration Style | HEXAGON FLATS |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Hole Type | DRILLED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN178-30 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| B6812A | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| B6812 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AN178H30 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 5306-00-144-3711 is a Bolt,close Tolerance, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-144-3711 has 4 cross-referenced part numbers: AN178-30 (Aeronautical Standards Group Dept of Navy and Air Force), B6812A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN178H30 (Aeronautical Standards Group Dept of Navy and Air Force).
There are 12 known substitutes for 5306-00-144-3711: 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 AN178-30: Fastener Length: 3.078 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN; Head Height: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN; Head Style: HEXAGON; Grip Diameter: 0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM IN. 24 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-144-3711 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.