The Setscrew, cataloged under National Stock Number 5305-00-421-9177, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-421-9177 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Point Diameter | 0.066 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| Head Height | 0.095 INCHES NOMINAL IN |
| Point Length | 0.171 INCHES NOMINAL IN |
| Fastener Length | 0.436 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 20 FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.218 INCHES MINIMUM IN |
| Material Document and Classification | 06-970 FSCM 23610 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Point Style | BALL |
| Surface Treatment | NICKEL OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.188 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1090604 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-9177 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-421-9177: Point Diameter: 0.066 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN; Head Height: 0.095 INCHES NOMINAL IN; Point Length: 0.171 INCHES NOMINAL IN; Fastener Length: 0.436 INCHES NOMINAL IN. 19 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.