The Bolt,machine, cataloged under National Stock Number 5306-01-038-4744, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-038-4744 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Fastener Length | 2.890 INCHES MINIMUM AND 2.937 INCHES MAXIMUM IN |
| Thread Length | 0.436 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR AMS 5645 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5646 ASSN STD 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS501 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 2.422 INCHES MINIMUM AND 2.454 INCHES MAXIMUM IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 321 OR STEEL COMP 347 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 |
|---|---|
| NAS501-4-27A | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| NAS501-4-27A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-038-4744 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-038-4744: Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Fastener Length: 2.890 INCHES MINIMUM AND 2.937 INCHES MAXIMUM IN; Thread Length: 0.436 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR AMS 5645 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5646 ASSN STD 4TH MATERIAL RESPONSE OVERALL. 16 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.