The Setscrew, cataloged under National Stock Number 5305-01-421-1866, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-421-1866 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Point Diameter | 0.031 INCHES NOMINAL IN |
| Point Length | 0.031 INCHES NOMINAL IN |
| Fastener Length | 0.141 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Thread Length | 0.125 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | DOG |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 56 |
| Material | STEEL CORROSION RESISTING FASTENER |
| Material | PLASTIC POLYAMIDE NYLON POINT |
| 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 |
| Reference | Meaning |
|---|---|
| SC7-1 | 3/9 Design control — primary reference W. M. Berg, Inc. |
NSN 5305-01-421-1866 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-421-1866: Point Diameter: 0.031 INCHES NOMINAL IN; Point Length: 0.031 INCHES NOMINAL IN; Fastener Length: 0.141 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Thread Length: 0.125 INCHES NOMINAL 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.