The Bolt,hook, cataloged under National Stock Number 5306-01-620-6078, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-620-6078 |
| Primary Part Number | 12370979 |
| Item Name | Bolt,hook |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Distance From Inside of Bend to Shank End | 7.39 INCHES NOMINAL IN |
| Thread Length | 0.86 INCHES NOMINAL IN |
| Hook Inside Width | 0.65 INCHES NOMINAL IN |
| Style Designator | RIGHT ANGLE BEND |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| 12370979 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12370979 | 5/9 Secondary reference Wbparts Inc |
NSN 5306-01-620-6078 is a Bolt,hook, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-620-6078 has 1 manufacturer part number on file: 12370979 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12370979: Distance From Inside of Bend to Shank End: 7.39 INCHES NOMINAL IN; Thread Length: 0.86 INCHES NOMINAL IN; Hook Inside Width: 0.65 INCHES NOMINAL IN; Style Designator: RIGHT ANGLE BEND. 10 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.