The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-144-4058, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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 | 5306-00-144-4058 |
| Primary Part Number | 85H30 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Department of the Air Force |
| Status | ACTIVE |
| 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 Length | 0.532 INCHES MINIMUM IN |
| Hole Type | DRILLED |
| Surface Finish | 125.0 MICROINCHES THREADS |
| 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 |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Series Designator | UNF |
| Hole Configuration Style | HEXAGON FLATS |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Grip Length | 2.562 INCHES NOMINAL IN |
| Fastener Length | 3.094 INCHES NOMINAL IN |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Width Between Flats | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Hole Diameter | 0.070 INCHES NOMINAL IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Hole Quantity | 1 |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Quantity Per Inch | 24 |
| Surface Treatment | CADMIUM OVERALL |
| Grip Diameter | 0.3112 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Head Style | HEXAGON |
| Surface Finish | 250.0 MICROINCHES TOP OF HEAD |
| Acquisition Status | ACTIVE |
| Successor | 5306-00-144-3646 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 85H30 | Department of the Air Force (USA) |
| NASM6812 | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| MILB6812 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MILB6812 | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
NSN 5306-00-144-4058 is a Bolt,close Tolerance, manufactured by Department of the Air Force, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-144-4058 has 4 cross-referenced part numbers: 85H30 (Department of the Air Force), NASM6812 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MILB6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILB6812 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).
There are 12 known substitutes for 5306-00-144-4058: 5306-00-630-2118, 5306-00-063-3268, 5306-00-144-3646 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 85H30: 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 Length: 0.532 INCHES MINIMUM IN; Hole Type: DRILLED; Surface Finish: 125.0 MICROINCHES THREADS. 26 total characteristics are documented in the Federal Logistics Information System.