NSN 5305-01-050-9648

Part Details | THUMBSCREW

5305-01-050-9648 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: 10882427, 5305-01-050-9648, 01-050-9648, 5305010509648, 010509648

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 17, 197701-050-964806673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

FLAT

Cross Reference | NSN 5305-01-050-9648
Part Number Cage Code Manufacturer
1088242719207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 5305-01-050-9648
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
FASTENER LENGTH0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM
HEAD STYLE9 HEXAGON EXTENDED WASHER
HEAD HEIGHT0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.520 INCHES MINIMUM AND 0.550 INCHES MAXIMUM
POINT STYLE9 FLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.172 INCHES MINIMUM AND 0.188 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM