The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-460-8545, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-460-8545 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 1.247 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE LOCKING FEATURE |
| Thread Length | 0.236 INCHES MINIMUM AND 0.318 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM FASTENER |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MAS 5643 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE LOCKING FEATURE |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.875 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM IN |
| Locking Feature | RETAINER GRIP |
| Surface Treatment | CADMIUM AND CHROMATE FASTENER |
| Surface Treatment | PASSIVATE LOCKING FEATURE |
| Minimum Tensile Strength | 95000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 630 OR STEEL COMP 440C LOCKING FEATURE |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 4130 OR STEEL COMP 6150 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CA4510-3-14 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
| 106467-3-14 | 5/2 Secondary reference U.S. Government activity |
| MS27576-3-14 | 5/9 Secondary reference U.S. Government activity |
| MS27576-3-14 | 3/2 Design control — primary reference U.S. Government activity |
| AS194-3-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-460-8545 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2810-00-671-5456. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-460-8545: Surface Finish: 63.0 MICROINCHES GRIP; Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 1.247 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN. 25 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.