The Screw,assembled Washer, cataloged under National Stock Number 5305-00-042-5578, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-042-5578 |
| Primary Part Number | 425578 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Surface Treatment Document and Classification | NAS672 80205 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| Thread Class | 2A A |
| Thread Series Designator | UNF |
| Head Height | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Length | 0.335 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Fastener Length | 0.406 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1050 OVERALL |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Washer Quantity | 1 |
| Primary Washer Outside Diameter | 0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 28 |
| Primary Washer Material Thickness | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN |
| Internal Drive Style | SLOT |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-042-5578 is a Screw,assembled Washer, manufactured by General Motors Corp, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-042-5578 has 2 cross-referenced part numbers: 425578 (General Motors Corp), 425578 (General Motors Llc Dba General Motors Llc).
There is 1 known substitute for 5305-00-042-5578: 5330-00-285-8272. Verify interchangeability with system specifications before substitution.
Key specifications for 425578: Thread Direction: RIGHT-HAND; Surface Treatment Document and Classification: NAS672 80205 ASSN STD ALL TREATMENT RESPONSES OVERALL; Thread Class: 2A A; Thread Series Designator: UNF. 19 total characteristics are documented in the Federal Logistics Information System.