The Bolt,machine, cataloged under National Stock Number 5306-01-388-3754, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-388-3754 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN |
| Fastener Length | 1.437 INCHES MINIMUM AND 1.453 INCHES MAXIMUM IN |
| Thread Length | 0.734 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | AMS5645 ASSN STD 1ST MATERIAL RESPONSE OR AMS5646 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS501 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.673 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN |
| Width Between Flats | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 321 OR STEEL COMP 347 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.070 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 |
|---|---|
| NAS5018H13A | 3/2 Design control — primary reference U.S. Government activity |
| NAS501-8H13A | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-388-3754 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-388-3754: Head Height: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN; Fastener Length: 1.437 INCHES MINIMUM AND 1.453 INCHES MAXIMUM IN; Thread Length: 0.734 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN; Hole Configuration Style: HEXAGON FLATS. 20 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.