The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-740-7641, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-740-7641 |
| Primary Part Number | 7407641 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Fastener Length | 2.609 INCHES MINIMUM AND 2.641 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN |
| First Diameter From Head | 0.870 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.781 INCHES MINIMUM AND 1.845 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.767 INCHES MINIMUM AND 0.777 INCHES MAXIMUM IN |
| Width Between Flats | 1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.671 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 1340 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 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 |
|---|---|
| 7407641 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| K1467 | 8/1 NATO reproduction reference Kanakas Th. & G. O.e |
| 5306007407641 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5306-00-740-7641 is a Bolt,externally Relieved Body, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-740-7641 has 1 manufacturer part number on file: 7407641 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7407641: Head Height: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Fastener Length: 2.609 INCHES MINIMUM AND 2.641 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.796 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN. 18 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.