The Screw,machine, cataloged under National Stock Number 5305-01-668-1657, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-668-1657 |
| Primary Part Number | J2484CCRF4Z10G |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Screw Surface Treatment | ZINC |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Screw Material Document and Classification | ASTM-A-29/A ASSN STD SINGLE MATERIAL RESPONSE |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| 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 |
|---|---|
| J2484CCRF4Z10G PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| J2484CCRF4Z10G | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-01-668-1657 is a Screw,machine, manufactured by Sae International Dba Sae International, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-668-1657 has 1 manufacturer part number on file: J2484CCRF4Z10G (Sae International Dba Sae International).
Key specifications for J2484CCRF4Z10G: Screw Surface Treatment: ZINC; Fastener Length: 0.625 INCHES NOMINAL IN; Screw Material Document and Classification: ASTM-A-29/A ASSN STD SINGLE MATERIAL RESPONSE; Head Style: FLAT COUNTERSUNK. 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.