The Screw,machine, cataloged under National Stock Number 5305-01-499-3537, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-499-3537 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | ANODIZE |
| Fastener Length | 2.953 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-A-430 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225, T4 FED SPEC 2ND MATERIAL RESPONSE |
| Thread Length | 0.531 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Surface Treatment | ANODIZE |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Head Surface Treatment Document and Classification | MIL-A-8625, TYPE I OR II MIL SPEC SINGLE TREATMENT RESPONSE |
| Screw Material | ALUMINUM ALLOY 2024 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.447 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | MIL-A-8625, TYPE I OR II MIL SPEC 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 |
|---|---|
| MS24694-A134 | 5/9 Secondary reference U.S. Government activity |
| AN509DD416R47 | 5/9 Secondary reference U.S. Government activity |
| MS24694-A134 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-499-3537 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-499-3537: Screw Surface Treatment: ANODIZE; Fastener Length: 2.953 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-A-430 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225, T4 FED SPEC 2ND MATERIAL RESPONSE; Thread Length: 0.531 INCHES MINIMUM AND 0.546 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.