The Bolt,machine, cataloged under National Stock Number 5306-01-134-6540, 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 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-134-6540 |
| Primary Part Number | 12277353 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.453 INCHES MINIMUM AND 0.453 INCHES MINIMUM AND 0.481 INCHES MAXIMUM0.481 INCHES MAXIMUM IN |
| Fastener Length | 5.250 INCHES MINIMUM AND 5.250 INCHES MINIMUM AND 5.340 INCHES MAXIMUM5.340 INCHES MAXIMUM IN |
| Thread Length | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL40.0 ROCKWELL C MAXIMUM OVERALL |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Width Between Flats | 1.254 INCHES MINIMUM AND 1.254 INCHES MINIMUM AND 1.299 INCHES MAXIMUM1.299 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC)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 |
|---|---|
| 12277353 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-01-134-6540 is a Bolt,machine, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-134-6540 has 1 manufacturer part number on file: 12277353 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12277353: Head Height: 0.453 INCHES MINIMUM AND 0.453 INCHES MINIMUM AND 0.481 INCHES MAXIMUM0.481 INCHES MAXIMUM IN; Fastener Length: 5.250 INCHES MINIMUM AND 5.250 INCHES MINIMUM AND 5.340 INCHES MAXIMUM5.340 INCHES MAXIMUM IN; Thread Length: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 25.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL40.0 ROCKWELL C MAXIMUM OVERALL. 9 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.