NSN 5305-00-143-1331

Part Details | THUMBSCREW

5305-00-143-1331 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: 206591, 20659-1, 5305-00-143-1331, 00-143-1331, 5305001431331, 001431331

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 17, 196800-143-133106673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

FLAT

Cross Reference | NSN 5305-00-143-1331
Part Number Cage Code Manufacturer
20659-114802MANDZAK INSTRUMENTATIONSPECIALISTS INC
Technical Data | NSN 5305-00-143-1331
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.170 INCHES MINIMUM
FASTENER LENGTH0.590 INCHES NOMINAL
HEAD STYLE9 HEXAGON EXTENDED WASHER
HEAD HEIGHT0.360 INCHES MINIMUM AND 0.420 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.320 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
POINT STYLE9 FLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.420 INCHES NOMINAL