The Screw,machine, cataloged under National Stock Number 5305-01-628-2906, 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 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-628-2906 |
| Primary Part Number | J2484CCRF4-8C |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Fastener Length | 0.50 INCHES NOMINAL IN |
| Thread Length | 0.50 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.25 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY 260 OR COPPER ALLOY 270 OR COPPER ALLOY 274 |
| 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) |
| Head Diameter | 0.477 INCHES NOMINAL IN |
| 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 |
|---|---|
| J2484CCRF4-8C PRIMARY | Sae International Dba Sae International (USA) |
| 167-8278258 ITEM NO 12 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| J2484CCRF4-8C | 3/9 Design control — primary reference U.S. Government activity |
| 167-8278259 PC 28 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-628-2906 is a Screw,machine, manufactured by Sae International Dba Sae International, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-628-2906 has 2 manufacturer part numbers on file: J2484CCRF4-8C (Sae International Dba Sae International), 167-8278258 ITEM NO 12 (Naval Sea Systems Command).
Key specifications for J2484CCRF4-8C: Fastener Length: 0.50 INCHES NOMINAL IN; Thread Length: 0.50 INCHES NOMINAL IN; Nominal Thread Diameter: 0.25 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.