The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-666-3666, 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 7 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 | 5305-01-666-3666 |
| Primary Part Number | 3995AS1502-4 |
| 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 Treatment Document and Classification | MIL-DTL-13924D, CLASS III MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 6.0 |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | BLACK CHEMICAL FINISH OVERALL |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | ISO M |
| 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 |
|---|---|
| 3995AS1502-4 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5305-01-666-3666 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 5305-01-666-3666 has 1 manufacturer part number on file: 3995AS1502-4 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 3995AS1502-4: Surface Treatment Document and Classification: MIL-DTL-13924D, CLASS III MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 6.0; Nominal Thread Diameter: 4.0 MILLIMETERS MM; Thread Direction: RIGHT-HAND. 7 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.