The Bolt,machine, cataloged under National Stock Number 5306-01-503-7849, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-503-7849 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.141 INCHES NOMINAL IN |
| Fastener Length | 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-B-6812 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.031 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 5306PL1576528 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| NAS428-4A-30 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-503-7849 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-503-7849: Head Height: 0.141 INCHES NOMINAL IN; Fastener Length: 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN. 15 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.