NSN 5305-00-206-4003
Part Details | THUMBSCREW
5305-00-206-4003 An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
Alternate Parts: V38J530PT1, 5305-00-206-4003, 00-206-4003, 5305002064003, 002064003
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-206-4003 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
FLAT
Cross Reference | NSN 5305-00-206-4003
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| V38J530PT1 | 24446 | GENERAL ELECTRIC COMPANY |
Technical Data | NSN 5305-00-206-4003
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.875 INCHES MINIMUM |
| FASTENER LENGTH | 0.938 INCHES NOMINAL |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.562 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| POINT STYLE | 9 FLAT |
| SPECIAL FEATURES | BEARING SURFACE OF HEAD 0.375 IN. DIA AND 4-40 UNC 2B THD 0.375 IN. DEEP CONCENTRIC HOLE IN THD END AND MEDIUM DIAMOND KNURL PORTION OF HEAD 0.188 IN. WIDE AND 0.031 IN. BY 45.0 DEG CHAMFER ON BOTH SIDES OF KNURLED PORTION |