The Bolt,assembled Washer, cataloged under National Stock Number 5306-00-283-0408, 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 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-283-0408 |
| Primary Part Number | 7418145 |
| Item Name | Bolt,assembled Washer |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.448 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN |
| Thread Length | 0.625 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.062 INCHES NOMINAL IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-00-283-0408 is a Bolt,assembled Washer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-283-0408 has 2 manufacturer part numbers on file: 7418145 (U S Army Tank Automotive Command Amsta-Im-Mm), 9409107 (General Motors Corp).
Key specifications for 7418145: Head Height: 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.448 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN; Thread Length: 0.625 INCHES MAXIMUM IN. 16 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.