The Screw,machine, cataloged under National Stock Number 5305-01-326-8090, 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22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-326-8090 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Screw Surface Treatment | SILVER |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE |
| Precious Material | SILVER |
| Thread Length | 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1352 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.140 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Screw Material | IRON ALLOY 660 |
| Precious Material and Location | OVERALL SILVER |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Hole Quantity | 6 |
| Thread Series Designator | UNRC |
| Head Hole Configuration Style | ROUND INTERNAL HEXAGON |
| Hole Diameter | 0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Diameter | 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | AMS2411 ASSN STD SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| NAS1352N08H8S | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-326-8090 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-326-8090: Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Screw Surface Treatment: SILVER; Fastener Length: 0.500 INCHES NOMINAL IN; Screw Material Document and Classification: AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE. 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.