The Bolt,machine, cataloged under National Stock Number 5306-00-271-2253, 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13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-271-2253 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Fastener Length | 3.990 INCHES MINIMUM AND 4.100 INCHES MAXIMUM IN |
| Thread Length | 3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL COMP 1045 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 440916PC3 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5306-00-271-2253 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-271-2253: Head Height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Fastener Length: 3.990 INCHES MINIMUM AND 4.100 INCHES MAXIMUM IN; Thread Length: 3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.