The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-439-6448, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Drs Tactical Systems Global Services, Inc.. Government technical data includes 12 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-439-6448 |
| Primary Part Number | 3505-02165-0004 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Drs Tactical Systems Global Services, Inc. |
| Status | ACTIVE |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.200 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | TORX |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 3505-02165-0004 PRIMARY | Drs Tactical Systems Global Services, Inc. (USA) |
NSN 5305-01-439-6448 is a Screw,cap,socket Head, manufactured by Drs Tactical Systems Global Services, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-439-6448 has 1 manufacturer part number on file: 3505-02165-0004 (Drs Tactical Systems Global Services, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-520-7649. Verify interchangeability with system specifications before substitution.
Key specifications for 3505-02165-0004: Fastener Length: 0.250 INCHES NOMINAL IN; Thread Length: 0.200 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN; Head Style: FLAT COUNTERSUNK. 12 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.