The Screw,assembled Washer, cataloged under National Stock Number 5305-00-282-9830, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-282-9830 |
| Primary Part Number | 7951217 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Primary Washer Outside Diameter | 0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| Thread Length | 1.458 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN NO. 2 |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.020 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Washer Quantity | 1 |
| Head Diameter | 0.351 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-00-282-9830 is a Screw,assembled Washer, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-282-9830 has 2 manufacturer part numbers on file: 7951217 (U S Army Tank Automotive Command Amsta-Im-Mm), 487279 (Stewart-Warner Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 3010-01-356-9420, 6750-01-427-4505. Verify interchangeability with system specifications before substitution.
Key specifications for 7951217: Head Height: 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN; Primary Washer Outside Diameter: 0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN; Thread Length: 1.458 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN. 17 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.