The Bolt,machine, cataloged under National Stock Number 5306-01-647-8581, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Brighton-Best International Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-647-8581 |
| Primary Part Number | 495059 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Brighton-Best International Inc |
| Status | ACTIVE |
| Head Height | 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM F2329 ASSN STD SINGLE TREATMENT RESPONSE OR ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A307, GRADE A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-01-647-8581 is a Bolt,machine, manufactured by Brighton-Best International Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-647-8581 has 2 manufacturer part numbers on file: 495059 (Brighton-Best International Inc), 91891 (Fastenal Company Dba Fastenal Co).
Key specifications for 495059: Head Height: 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM F2329 ASSN STD SINGLE TREATMENT RESPONSE OR ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTM A307, GRADE A ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.500 INCHES IN. 7 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.