The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-334-7908, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-334-7908 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Fastener Length | 2.026 INCHES MINIMUM AND 2.056 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.041 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.7500 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Width Between Flats | 1.058 INCHES NOMINAL IN |
| Grip Diameter | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.789 INCHES NOMINAL FIRST HOLE 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 |
|---|---|
| NAS6612D16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-334-7908 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-334-7908: Head Height: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Fastener Length: 2.026 INCHES MINIMUM AND 2.056 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.041 INCHES NOMINAL IN. 18 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.