The Bolt,u, cataloged under National Stock Number 5306-00-337-9672, 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 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-337-9672 |
| Primary Part Number | 8379660 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Inside Distance Between Shanks | 6.312 INCHES MINIMUM AND 6.375 INCHES MAXIMUM IN |
| Thread Length | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 BRINELL HULTGREN MINIMUM AND 28.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Distance From Inside Center of Bend to Bolt End | 12.125 INCHES NOMINAL IN |
| Style Designator | SQUARE BEND |
| Material Document and Classification | ASTM A304(SUPERSEDES QQ-S-624) ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4150 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 |
|---|---|
| 8379660 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5306003379672 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 5306003379672 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5306-00-337-9672 is a Bolt,u, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-337-9672 has 1 manufacturer part number on file: 8379660 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8379660: Inside Distance Between Shanks: 6.312 INCHES MINIMUM AND 6.375 INCHES MAXIMUM IN; Thread Length: 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN; Hardness Rating: 24.0 BRINELL HULTGREN MINIMUM AND 28.0 BRINELL HULTGREN MAXIMUM OVERALL; Distance From Inside Center of Bend to Bolt End: 12.125 INCHES NOMINAL IN. 12 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.