The Bolt,shoulder, cataloged under National Stock Number 5306-01-188-7455, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-188-7455 |
| Primary Part Number | 12321860 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 3.500 INCHES NOMINAL IN |
| Shoulder Length | 2.350 INCHES NOMINAL ALL SHOULDERS IN |
| Shoulder Diameter | 0.830 INCHES NOMINAL ALL SHOULDERS IN |
| Thread Length | 0.038 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.000 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 12321860 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5306011887455 | 6/9 Informative reference only Etablissement Central De Gestion Etde Stockage Du Materiel |
NSN 5306-01-188-7455 is a Bolt,shoulder, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-188-7455 has 1 manufacturer part number on file: 12321860 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12321860: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 3.500 INCHES NOMINAL IN; Shoulder Length: 2.350 INCHES NOMINAL ALL SHOULDERS IN; Shoulder Diameter: 0.830 INCHES NOMINAL ALL SHOULDERS IN. 14 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.