The Bolt,machine, cataloged under National Stock Number 5306-00-733-8558, 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 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-733-8558 |
| Primary Part Number | 7338558 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 1.641 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN |
| Thread Length | 0.719 INCHES MINIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.938 INCHES NOMINAL IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 8630 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 |
|---|---|
| 7338558 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| JH11975 | 5/9 Secondary reference Lucas Aerospace Power Equipment Corporation |
| JH11975 | C/1 Advisory reference — outside the item-of-supply concept Safran Power Usa Llc |
NSN 5306-00-733-8558 is a Bolt,machine, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-733-8558 has 1 manufacturer part number on file: 7338558 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7338558: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 1.641 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN; Thread Length: 0.719 INCHES MINIMUM IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL. 17 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.