The Screw,machine, cataloged under National Stock Number 5305-01-679-4058, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-679-4058 |
| Primary Part Number | AESC1C375750DG5M31 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| External Thread Tolerance Class | A |
| Screw Surface Treatment | ZINC |
| Document Type | INTERNATIONAL ORGANIZATION FOR STANDARDIZATION |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Shank Surface Treatment | ZINC |
| Bearing Surface of Head Surface Treatment | ZINC |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Surface Treatment | ZINC |
| Head Style | FLAT TOP ELEVATOR |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| AESC1C375750DG5M31 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-679-4058 is a Screw,machine, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-679-4058 has 1 manufacturer part number on file: AESC1C375750DG5M31 (The American Society of Mechanical Engineers).
Key specifications for AESC1C375750DG5M31: External Thread Tolerance Class: A; Screw Surface Treatment: ZINC; Document Type: INTERNATIONAL ORGANIZATION FOR STANDARDIZATION; Thread Length: 0.750 INCHES NOMINAL IN. 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.