The Bolt,machine, cataloged under National Stock Number 5306-00-741-4576, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-741-4576 |
| Primary Part Number | 6766337 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Head Height | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Fastener Length | 5.875 INCHES MINIMUM AND 5.906 INCHES MAXIMUM IN |
| Thread Length | 1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Hardness Rating | 22.0 ROCKWELL C MINIMUM AND 29.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 4.468 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN |
| Width Between Flats | 0.737 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL 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 |
NSN 5306-00-741-4576 is a Bolt,machine, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-741-4576 has 3 manufacturer part numbers on file: 6766337 (Allison Transmission Inc Dba Allison Transmission, Inc), 7414576 (U S Army Tank Automotive Command Amsta-Im-Mm), 6766337 (General Motors Corp).
Key specifications for 6766337: Head Height: 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; Fastener Length: 5.875 INCHES MINIMUM AND 5.906 INCHES MAXIMUM IN; Thread Length: 1.250 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN; Hardness Rating: 22.0 ROCKWELL C MINIMUM AND 29.0 ROCKWELL C MAXIMUM OVERALL. 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.