NSN 5305-01-233-1403

Part Details | THUMBSCREW

5305-01-233-1403 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: C5106745001, C5106745-001, 5305-01-233-1403, 01-233-1403, 5305012331403, 012331403

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 26, 198601-233-140306673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

FLAT

Cross Reference | NSN 5305-01-233-1403
Part Number Cage Code Manufacturer
C5106745-00157958SIGNALS WARFARE PROJECT MANAGER
Technical Data | NSN 5305-01-233-1403
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2B
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.250 INCHES NOMINAL
FASTENER LENGTH1.442 INCHES NOMINAL
HEAD STYLE7 HEXAGON COUNTERSUNK UNDERCUT
HEAD DIAMETER1.000 INCHES NOMINAL
HEAD HEIGHT0.312 INCHES NOMINAL
POINT STYLE6 FLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.187 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.557 INCHES NOMINAL
SPECIAL FEATURESAPPLY TOP COAT USING FOREST GREEN