The Bolt,machine, cataloged under National Stock Number 5306-00-208-0201, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-208-0201 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Head Height | 0.435 INCHES NOMINAL IN |
| Fastener Length | 1.948 INCHES MINIMUM AND 1.978 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Length | 0.803 INCHES MINIMUM AND 0.813 INCHES MAXIMUM IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.145 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN |
| Width Between Flats | 0.494 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 726247-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-208-0201 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-208-0201: Extended Washer Thickness: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Head Height: 0.435 INCHES NOMINAL IN; Fastener Length: 1.948 INCHES MINIMUM AND 1.978 INCHES MAXIMUM IN; Extended Washer Diameter: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM 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.