The Bolt,u, cataloged under National Stock Number 5306-00-445-7240, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-445-7240 |
| Primary Part Number | 11664570 |
| 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 | 3.063 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-P-16232,TYPE Z,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.500 INCHES NOMINAL IN |
| Distance From Inside Center of Bend to Bolt End | 15.060 INCHES MINIMUM AND 15.120 INCHES MAXIMUM IN |
| Style Designator | SQUARE BEND |
| Material Document and Classification | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 1340 OR STEEL COMP 4042 OR STEEL COMP 4140 OR STEEL COMP 5135 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 |
|---|---|
| 11664570 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5306004457240 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5306-00-445-7240 is a Bolt,u, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-445-7240 has 1 manufacturer part number on file: 11664570 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11664570: Inside Distance Between Shanks: 3.063 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-P-16232,TYPE Z,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 2.500 INCHES NOMINAL IN; Distance From Inside Center of Bend to Bolt End: 15.060 INCHES MINIMUM AND 15.120 INCHES MAXIMUM IN. 13 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.