NSN 5305-00-206-7478

Part Details | THUMBSCREW

5305-00-206-7478 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: 7600425, 5305-00-206-7478, 00-206-7478, 5305002067478, 002067478

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-206-747806673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

FLAT

Cross Reference | NSN 5305-00-206-7478
Part Number Cage Code Manufacturer
760042519200US ARMY ARDEC RDECOM
Technical Data | NSN 5305-00-206-7478
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM
FASTENER LENGTH15.125 INCHES NOMINAL
HEAD STYLE6 HEXAGON COUNTERSUNK UNDERCUT
HEAD DIAMETER1.250 INCHES NOMINAL
HEAD HEIGHT0.625 INCHES NOMINAL
POINT STYLE9 FLAT
SPECIAL FEATURESSHOULDERED UNTHD PORTION DRILLED FOR PIN SPRING NO. 3