The Bolt,u, cataloged under National Stock Number 5306-01-165-3272, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-165-3272 |
| Primary Part Number | 12277330 |
| 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 | 1.560 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-Z-325 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Distance From Inside Center of Bend to Bolt End | 3.295 INCHES NOMINAL IN |
| Style Designator | ROUND BEND |
| Material Document and Classification | ASTM A576 ASSN STD ALL MATERIAL RESPONSES OR ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND CHROMATE OR CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1040 OR STEEL COMP 1042 OR STEEL COMP 1043 OR STEEL COMP 1045 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 |
|---|---|
| 12277330 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-01-165-3272 is a Bolt,u, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-165-3272 has 1 manufacturer part number on file: 12277330 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12277330: Inside Distance Between Shanks: 1.560 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-Z-325 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 1.000 INCHES NOMINAL IN; Distance From Inside Center of Bend to Bolt End: 3.295 INCHES NOMINAL 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.