The Screw,machine, cataloged under National Stock Number 5305-01-423-5380, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-423-5380 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| External Thread Tolerance Class | 6H |
| Screw Surface Treatment | ZINC AND CHROMATE |
| Fastener Length | 20.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 0.8 |
| Thread Length | 19.0 MILLIMETERS MINIMUM MM |
| Nominal Thread Diameter | 5.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL PROPERTY CLASS 9.8 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| Thread Series Designator | M |
| Head Diameter | 9.8 MILLIMETERS MINIMUM AND 10.4 MILLIMETERS MAXIMUM MM |
| Screw Surface Treatment Document and Classification | ASTM B633, TY2 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 |
|---|---|
| B1867BA050200 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-423-5380 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-423-5380: External Thread Tolerance Class: 6H; Screw Surface Treatment: ZINC AND CHROMATE; Fastener Length: 20.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 0.8. 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.