The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-224-1738, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-224-1738 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Fastener Length | 6.450 INCHES MINIMUM AND 6.480 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.528 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.5000 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS6208-95D PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 5.927 INCHES MINIMUM AND 5.947 INCHES MAXIMUM IN |
| Width Between Flats | 0.836 INCHES NOMINAL IN |
| Grip Diameter | 0.4945 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE OVERALL |
| Minimum Tensile Strength | 1600000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 6.267 INCHES NOMINAL ALL HOLES IN |
| 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 |
|---|---|
| NAS6208-96D | 3/2 Design control — primary reference U.S. Government activity |
| NAS1108-96DW | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-224-1738 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-224-1738: Head Height: 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Fastener Length: 6.450 INCHES MINIMUM AND 6.480 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.528 INCHES NOMINAL IN. 19 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.