The Bolt,machine, cataloged under National Stock Number 5306-00-752-1457, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-752-1457 |
| Primary Part Number | 7521457 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Fastener Length | 1.084 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN |
| Thread Length | 0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.178 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Width Between Flats | 0.610 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Locking Feature | DISTORTIONS BEARING SURFACE OF HEAD |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 6763653 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6763653 | General Motors Corp (USA) |
| 7521457 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 62.71.022 | 5/9 Secondary reference Sapa Operaciones SL |
| 5306007521457 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5306-00-752-1457 is a Bolt,machine, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-752-1457 has 3 manufacturer part numbers on file: 6763653 (Allison Transmission Inc Dba Allison Transmission, Inc), 6763653 (General Motors Corp), 7521457 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5998-00-832-2209. Verify interchangeability with system specifications before substitution.
Key specifications for 7521457: Head Height: 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Fastener Length: 1.084 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN; Thread Length: 0.905 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.438 INCHES IN. 14 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.