The Screw,machine, cataloged under National Stock Number 5305-01-641-6079, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-641-6079 |
| Primary Part Number | 701-7666372 ITEM 4 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Screw Material Document and Classification | J2484, HD TY-S ASSN STD SINGLE MATERIAL RESPONSE AND ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | SLOT |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 701-7666372 ITEM 4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 701-7666372 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5305-01-641-6079 is a Screw,machine, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-641-6079 has 1 manufacturer part number on file: 701-7666372 ITEM 4 (Naval Sea Systems Command).
Key specifications for 701-7666372 ITEM 4: Fastener Length: 0.625 INCHES NOMINAL IN; Screw Material Document and Classification: J2484, HD TY-S ASSN STD SINGLE MATERIAL RESPONSE AND ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: FLAT COUNTERSUNK. 11 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.