The Screw,machine, cataloged under National Stock Number 5305-01-392-6428, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-392-6428 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 0.109 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Screw Material Document and Classification | FED-STD66 FED STD ALL MATERIAL RESPONSES |
| Thread Length | 0.088 INCHES MAXIMUM IN |
| Locking Feature Material | PLASTIC POLYAMIDE NYLON |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH |
| Screw Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 56 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.143 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | MIL-C-13924 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 |
|---|---|
| 3307728-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-392-6428 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-392-6428: Screw Surface Treatment: OXIDE; Fastener Length: 0.109 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Screw Material Document and Classification: FED-STD66 FED STD ALL MATERIAL RESPONSES; Thread Length: 0.088 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.