The Bolt,machine, cataloged under National Stock Number 5306-01-039-6514, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-039-6514 |
| Primary Part Number | 445566 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Head Height | 0.488 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Fastener Length | 1.085 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.335 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 445566 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 445566 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| B-1.135-445566 | 3/9 Design control — primary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 4720010396514 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5306-01-039-6514 is a Bolt,machine, manufactured by Rolls-Royce Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-039-6514 has 2 manufacturer part numbers on file: 445566 (Allison Transmission Inc Dba Allison Transmission, Inc), 445566 (Rolls-Royce Corporation).
Key specifications for 445566: Head Height: 0.488 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN; Fastener Length: 1.085 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN; Thread Length: 0.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN. 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.