The Screw,machine, cataloged under National Stock Number 5305-00-271-3385, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-271-3385 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.175 INCHES NOMINAL IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-S-763,CLASS 4 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720,COMP FM MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720,COMP FM MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-7720,COMP G MIL SPEC 4TH MATERIAL RESPONSE |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 430 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 302 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.443 INCHES MINIMUM AND 0.472 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 |
|---|---|
| AN520C416-14 | 2/2 Government specification standardization U.S. Government activity |
NSN 5305-00-271-3385 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-271-3385: Head Height: 0.175 INCHES NOMINAL IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.875 INCHES NOMINAL IN; Screw Material Document and Classification: QQ-S-763,CLASS 4 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720,COMP FM MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-7720,COMP FM MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-7720,COMP G MIL SPEC 4TH MATERIAL RESPONSE. 14 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.