The Bolt,machine, cataloged under National Stock Number 5306-00-335-4744, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-335-4744 |
| Primary Part Number | 8332191 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Thread Length | 0.880 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.906 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1137 OR STEEL COMP 1139 OR STEEL COMP 1140 OR STEEL COMP 1141 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 |
|---|---|
| 3AX1261 | Mack Trucks Inc Parts Opn (USA) |
| K-500-CH-1917 | Kovatch Corp. (USA) |
| 8332191 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3AX 1261 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-335-4744 is a Bolt,machine, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-335-4744 has 3 manufacturer part numbers on file: 3AX1261 (Mack Trucks Inc Parts Opn), K-500-CH-1917 (Kovatch Corp.), 8332191 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8332191: Head Height: 0.400 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN; Fastener Length: 2.000 INCHES NOMINAL IN; Thread Length: 0.880 INCHES NOMINAL IN; Material Document and Classification: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL. 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.