The Bolt,machine, cataloged under National Stock Number 5306-00-028-4205, 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16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-028-4205 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.190 INCHES NOMINAL IN |
| Fastener Length | 1.160 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AN-P-61 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.810 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5020 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.350 INCHES NOMINAL IN |
| Width Between Flats | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 11L37 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 |
|---|---|
| STD2156 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-028-4205 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-028-4205: Head Height: 0.190 INCHES NOMINAL IN; Fastener Length: 1.160 INCHES NOMINAL IN; Surface Treatment Document and Classification: AN-P-61 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.810 INCHES MINIMUM 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.