The Screw,machine, cataloged under National Stock Number 5305-01-013-3979, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Western Union Telegraph Co Principal Management Facility. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-013-3979 |
| Primary Part Number | 6-32X1-4YLSTLRDH |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Western Union Telegraph Co Principal Management Facility |
| Status | ACTIVE |
| Fastener Length | 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Length | 0.157 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Screw Material | PLASTIC OR STEEL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 6-32X1-4YLSTLRDH PRIMARY | Western Union Telegraph Co Principal Management Facility (USA) |
| Reference | Meaning |
|---|---|
| 272799 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-013-3979 is a Screw,machine, manufactured by Western Union Telegraph Co Principal Management Facility, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-013-3979 has 1 manufacturer part number on file: 6-32X1-4YLSTLRDH (Western Union Telegraph Co Principal Management Facility).
Key specifications for 6-32X1-4YLSTLRDH: Fastener Length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Thread Length: 0.157 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN; Head Style: ROUND. 9 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.