The Bolt,machine, cataloged under National Stock Number 5306-00-307-1986, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-307-1986 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.156 INCHES NOMINAL IN |
| Head Height | 0.690 INCHES NOMINAL IN |
| Fastener Length | 3.010 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN |
| Extended Washer Diameter | 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Thread Length | 1.046 INCHES MINIMUM AND 1.096 INCHES MAXIMUM IN |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | ROUND |
| Material Document and Classification | MIL-S-5000,COMP 4340,COND C1 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6049,COMP 8740,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.944 INCHES MINIMUM AND 1.964 INCHES MAXIMUM IN |
| Width Between Flats | 0.806 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 200000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.071 INCHES NOMINAL 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 |
|---|---|
| 344057-3 | 5/9 Secondary reference U.S. Government activity |
| 344057-9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-307-1986 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-307-1986: Extended Washer Thickness: 0.156 INCHES NOMINAL IN; Head Height: 0.690 INCHES NOMINAL IN; Fastener Length: 3.010 INCHES MINIMUM AND 3.040 INCHES MAXIMUM IN; Extended Washer Diameter: 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN. 23 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.