The Bolt,machine, cataloged under National Stock Number 5306-01-294-0251, 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16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-294-0251 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Fastener Length | 2.250 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2408 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.179 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-637 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS467 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | TIN OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 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 |
|---|---|
| NAS467-4-36 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-294-0251 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-294-0251: Head Height: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Fastener Length: 2.250 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2408 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 2.179 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN. 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.