The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-239-7425, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 18 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 | 5305-00-239-7425 |
| Primary Part Number | 60A52C78-2 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES GRIP |
| Width Across Flats | 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN |
| Fastener Length | 2.708 INCHES MINIMUM AND 2.728 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-STD-171,NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.562 INCHES MINIMUM IN |
| Material Document and Classification | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 431 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.469 INCHES MINIMUM AND 0.477 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 |
|---|---|
| 60A52C78-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5305-00-239-7425 is a Screw,cap,socket Head, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-239-7425 has 1 manufacturer part number on file: 60A52C78-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 60A52C78-2: Surface Finish: 63.0 MICROINCHES GRIP; Width Across Flats: 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN; Fastener Length: 2.708 INCHES MINIMUM AND 2.728 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-STD-171,NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL. 18 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.