The Screw,assembled Washer, cataloged under National Stock Number 5305-01-317-5207, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-317-5207 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Fastener Length | 0.280 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Secondary Washer Relationship to Primary Washer | NOT IDENTICAL |
| Primary Washer Outside Diameter | 0.337 INCHES NOMINAL IN |
| Thread Length | 0.218 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES PRIMARY WASHER |
| Secondary Washer Style | FLAT |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Primary Washer Style | SPLIT HELICAL RING |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.047 INCHES NOMINAL IN |
| Specification/standard Data | 80205-NAS1301 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Secondary Washer Outside Diameter | 0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Secondary Washer Material Thickness | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 AND STEEL COMP 304 AND STEEL COMP 303SE FASTENER |
| Material | STEEL COMP 302 AND STEEL COMP 304 PRIMARY WASHER |
| Thread Series Designator | UNF |
| Washer Quantity | 2 |
| Head Diameter | 0.357 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 |
| Reference | Meaning |
|---|---|
| NAS1301C10-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-317-5207 is a Screw,assembled Washer, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-317-5207: Head Height: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN; Fastener Length: 0.280 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Secondary Washer Relationship to Primary Washer: NOT IDENTICAL; Primary Washer Outside Diameter: 0.337 INCHES NOMINAL IN. 24 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.