The Bolt,machine, cataloged under National Stock Number 5306-00-338-1970, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-338-1970 |
| Primary Part Number | 8332181 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 1.560 INCHES NOMINAL IN |
| Thread Length | 0.720 INCHES NOMINAL IN |
| Hardness Rating | 269.0 BRINELL STANDARD MINIMUM AND 293.0 BRINELL STANDARD MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.120 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS CHAMFERED |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.625 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 8735 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.400 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.120 INCHES NOMINAL IN |
| 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 |
|---|---|
| 8332181 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 183GC128 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
NSN 5306-00-338-1970 is a Bolt,machine, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-338-1970 has 1 manufacturer part number on file: 8332181 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8332181: Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 1.560 INCHES NOMINAL IN; Thread Length: 0.720 INCHES NOMINAL IN; Hardness Rating: 269.0 BRINELL STANDARD MINIMUM AND 293.0 BRINELL STANDARD MAXIMUM OVERALL. 16 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.