The Screw,machine, cataloged under National Stock Number 5305-01-583-1387, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Arquus. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-583-1387 |
| Primary Part Number | 7421506100 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Arquus |
| Status | ACTIVE |
| Head Height | 2.9 MILLIMETERS NOMINAL MM |
| Fastener Length | 8.9 MILLIMETERS NOMINAL MM |
| Thread Length | 6.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE III |
| Thread Series Designator | M |
| Head Diameter | 8.2 MILLIMETERS NOMINAL MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7421506100 | Arquus (FRA) |
| Reference | Meaning |
|---|---|
| SEELSKREW RM 4X6MM F | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-583-1387 is a Screw,machine, manufactured by Arquus, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-583-1387 has 1 manufacturer part number on file: 7421506100 (Arquus).
Key specifications for 7421506100: Head Height: 2.9 MILLIMETERS NOMINAL MM; Fastener Length: 8.9 MILLIMETERS NOMINAL MM; Thread Length: 6.0 MILLIMETERS NOMINAL MM; Nominal Thread Diameter: 4.0 MILLIMETERS MM. 10 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.