The Screw,machine, cataloged under National Stock Number 5305-01-709-0840, 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 16 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 | 5305-01-709-0840 |
| Primary Part Number | AESD4C190625GM7A81 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Head Height | 0.148 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Screw Material Document and Classification | ANY CARBON STEEL PER ASME B18.24-2020 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B18.24-2020 NATIONAL STD/SPEC |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | ASTM B633, TYPE II, SC 1 NATIONAL STD/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 |
| Part Number | Manufacturer |
|---|---|
| AESD4C190625GM7A81 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-709-0840 is a Screw,machine, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-709-0840 has 1 manufacturer part number on file: AESD4C190625GM7A81 (The American Society of Mechanical Engineers).
Key specifications for AESD4C190625GM7A81: Head Height: 0.148 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Screw Surface Treatment: ZINC; Fastener Length: 0.625 INCHES NOMINAL IN; Screw Material Document and Classification: ANY CARBON STEEL PER ASME B18.24-2020 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE. 16 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.