The Setscrew, cataloged under National Stock Number 5305-00-263-9170, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-263-9170 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Spline Minor Diameter | 0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN |
| Fastener Length | 0.188 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Spline Width | 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN |
| Thread Length | 0.188 INCHES MINIMUM IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Spline Major Diameter | 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | SIX SPLINE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| 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 |
|---|---|
| MS51053-113 | 2/2 Government specification standardization U.S. Government activity |
| A8544-4 | 5/9 Secondary reference Bendix Corp the |
| A8544-4 | 5/1 Secondary reference Raytheon Company Dba Raytheon Co |
NSN 5305-00-263-9170 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-263-9170: Spline Minor Diameter: 0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN; Fastener Length: 0.188 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Spline Width: 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN. 18 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.