The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-646-1259, 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 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-646-1259 |
| Primary Part Number | J2295F879C3F06-N12CW |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 0.219 INCHES NOMINAL IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 304L OR STEEL COMP 316L OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM 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 |
|---|---|
| 588-7666730 ITEM 48 | Naval Sea Systems Command (USA) |
| J2295F879C3F06-N12CW PRIMARY | Sae International Dba Sae International (USA) |
| 588-8326743 ITEM 49 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| J2295F879C3F06-N12CW | 5/9 Secondary reference U.S. Government activity |
| 588-8326743 ITEM 49 | 5/9 Secondary reference Bushnell Group, Inc Div Bushnell Holdings, Inc. |
| SAE J2295 | 3/1 Design control — primary reference Sae International Dba Sae International |
| SAE J2295 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-646-1259 is a Screw,cap,socket Head, manufactured by Sae International Dba Sae International, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-646-1259 has 3 manufacturer part numbers on file: 588-7666730 ITEM 48 (Naval Sea Systems Command), J2295F879C3F06-N12CW (Sae International Dba Sae International), 588-8326743 ITEM 49 (Naval Sea Systems Command).
Key specifications for J2295F879C3F06-N12CW: Width Across Flats: 0.219 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.375 INCHES NOMINAL IN; Nominal Thread Diameter: 0.375 INCHES IN. 13 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.