The Screw,machine, cataloged under National Stock Number 5305-00-720-6586, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-720-6586 |
| Primary Part Number | 639155-215 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Stromberg-Carlson Corp a Plessey Telecommunications Co |
| Status | ACTIVE |
| Head Height | 0.051 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Screw Surface Treatment | NICKEL |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.099 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 48 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.180 INCHES MINIMUM AND 0.193 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 |
|---|---|
| 639155-215 PRIMARY | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| 639155-215 | Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA) |
NSN 5305-00-720-6586 is a Screw,machine, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-720-6586 has 2 manufacturer part numbers on file: 639155-215 (Stromberg-Carlson Corp a Plessey Telecommunications Co), 639155-215 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).
Key specifications for 639155-215: Head Height: 0.051 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Screw Surface Treatment: NICKEL; Fastener Length: 0.250 INCHES NOMINAL IN; Thread Length: 0.250 INCHES MAXIMUM 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.