The Setscrew, cataloged under National Stock Number 5305-01-052-1779, 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19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-052-1779 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Spline Minor Diameter | 0.0255 INCHES MINIMUM AND 0.0265 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 0.059 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Spline Width | 0.0115 INCHES MINIMUM AND 0.0120 INCHES MAXIMUM IN |
| Thread Length | 0.059 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Spline Major Diameter | 0.034 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.060 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | FOUR SPLINE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 80 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.435 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 |
|---|---|
| 785-005-001 | 3/9 Design control — primary reference Navcom Defense Electronics, Inc. |
NSN 5305-01-052-1779 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-052-1779: Spline Minor Diameter: 0.0255 INCHES MINIMUM AND 0.0265 INCHES MAXIMUM IN; Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 0.059 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.