The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-275-9525, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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 | 5306-00-275-9525 |
| Primary Part Number | AN175H5 |
| 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 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Hole Type | DRILLED |
| Thread Quantity Per Inch | 24 |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.547 INCHES NOMINAL FIRST HOLE IN |
| Hole Diameter | 0.070 INCHES NOMINAL IN |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Grip Diameter | 0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Fastener Length | 0.719 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Width Between Flats | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shank Unthreaded Hole Diameter | 0.076 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Hole Quantity | 1 |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.531 INCHES MINIMUM IN |
| 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 AMS 6300 ASSN STD 4TH MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
| Thread Series Designator | UNF |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Grip Length | 0.188 INCHES NOMINAL IN |
| Material | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL |
| Hole Configuration Style | HEXAGON FLATS |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Acquisition Status | CANCELLED |
| Successor | 5306-00-051-2338 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN175H5 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| B6812 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AN175-5 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 5306-00-275-9525 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 5306-00-275-9525 has 3 cross-referenced part numbers: AN175H5 (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), AN175-5 (Aeronautical Standards Group Dept of Navy and Air Force).
There are 12 known substitutes for 5306-00-275-9525: 5306-00-180-0462, 5306-00-051-2338, 5306-00-051-2343 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN175H5: Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS; Thread Class: 3A A; Hole Type: DRILLED; Thread Quantity Per Inch: 24. 26 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-275-9525 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.