The Screw,assembled Washer, cataloged under National Stock Number 5305-01-628-9221, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sems and Specials, Inc. Dba Sems & Specials Inc. Government technical data includes 18 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 | 5305-01-628-9221 |
| Primary Part Number | 95345A562 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sems and Specials, Inc. Dba Sems & Specials Inc |
| Status | ACTIVE |
| Head Height | 0.133 INCHES NOMINAL IN |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.383 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | LOCK WASHER |
| Head Style | PAN |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.024 INCHES NOMINAL IN |
| Secondary Washer Outside Diameter | 0.383 INCHES NOMINAL IN |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Class | 2A A |
| Secondary Washer Material Thickness | 0.024 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 OVERALL |
| Thread Series Designator | UNF |
| Washer Quantity | 1 |
| Head Diameter | 0.373 INCHES NOMINAL 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 5305-01-628-9221 is a Screw,assembled Washer, manufactured by Sems and Specials, Inc. Dba Sems & Specials Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-628-9221 has 2 manufacturer part numbers on file: 95345A562 (Mcmaster-Carr Supply Co), 95345A562 (Sems and Specials, Inc. Dba Sems & Specials Inc).
Key specifications for 95345A562: Head Height: 0.133 INCHES NOMINAL IN; Fastener Length: 0.375 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.383 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN. 18 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.