The Setscrew, cataloged under National Stock Number 5305-01-103-6020, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-103-6020 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-C-320 CL 2B FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Thread Length | 0.663 INCHES MINIMUM AND 0.711 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | HALF DOG |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Surface Treatment | CHROMIUM THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 938A813-139 | 5/1 Secondary reference U.S. Government activity |
| 1157F26-3 | 5/1 Secondary reference U.S. Government activity |
| 1157F26 ITEM 3 | 3/1 Design control — primary reference U.S. Government activity |
| 8426C87IT3 | 5/1 Secondary reference U.S. Government activity |
NSN 5305-01-103-6020 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-103-6020: Width Across Flats: 0.125 INCHES NOMINAL IN; Fastener Length: 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-C-320 CL 2B FED SPEC SINGLE TREATMENT RESPONSE THREADS; Special Test Features: SPECIAL QUALITY CONTROL TESTING. 20 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.