The Bolt,machine, cataloged under National Stock Number 5306-00-007-6227, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-007-6227 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.032 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Fastener Length | 0.347 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN |
| Thread Length | 0.347 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM 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 |
|---|---|
| 3239289 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-007-6227 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-007-6227: Head Height: 0.032 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Fastener Length: 0.347 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN; Thread Length: 0.347 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN. 13 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.