The Screw,assembled Washer, cataloged under National Stock Number 5305-01-228-3283, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-228-3283 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.103 INCHES MAXIMUM IN |
| Fastener Length | 0.407 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | 595 FED STD SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | 595 FED STD SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| Primary Washer Outside Diameter | 0.360 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | ROUND |
| Primary Washer Style | FLAT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.053 INCHES MAXIMUM IN |
| Surface Treatment | PLASTIC EPOXY HEAD |
| Surface Treatment | PLASTIC EPOXY PRIMARY WASHER |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 FASTENER |
| Material | STEEL CORROSION RESISTING PRIMARY WASHER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Head Diameter | 0.270 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 |
|---|---|
| 3675-6R7-3725SS | 3/2 Design control — primary reference U.S. Government activity |
| 7117407-4 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 7117407-4 | 5/9 Secondary reference Litton Systems Inc Guidance and Control Systems Div |
NSN 5305-01-228-3283 is a Screw,assembled Washer, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-228-3283: Head Height: 0.103 INCHES MAXIMUM IN; Fastener Length: 0.407 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Surface Treatment Document and Classification: 595 FED STD SINGLE TREATMENT RESPONSE HEAD; Surface Treatment Document and Classification: 595 FED STD SINGLE TREATMENT RESPONSE PRIMARY WASHER. 22 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.