The Screw,assembled Washer, cataloged under National Stock Number 5305-00-074-1389, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-074-1389 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Fastener Length | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Primary Washer Outside Diameter | 0.327 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Thread Length | 0.679 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | PAN NO. 2 |
| Primary Washer Style | FLAT INTERNAL TEETH |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.020 INCHES NOMINAL IN |
| Surface Treatment | ZINC AND PHOSPHATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.322 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 |
| Reference | Meaning |
|---|---|
| 12Z1071-100 | 2/2 Government specification standardization U.S. Government activity |
NSN 5305-00-074-1389 is a Screw,assembled Washer, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-074-1389: Head Height: 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN; Fastener Length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Primary Washer Outside Diameter: 0.327 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Thread Length: 0.679 INCHES MINIMUM AND 0.710 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.