NSN 5305-00-008-7868

Part Details | THUMBSCREW

5305-00-008-7868 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: SMB2086661 & 2, SM-B-208666-1 & -2, SMB208666, 5305-00-008-7868, 00-008-7868, 5305000087868, 000087868

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 23, 197200-008-786806673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

FLAT

Cross Reference | NSN 5305-00-008-7868
Part Number Cage Code Manufacturer
SM-B-208666-1 & -281337ARMY, UNITED STATES DEPARTMENT OFTHE
SMB20866680063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5305-00-008-7868
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.453 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
FASTENER LENGTH2.281 INCHES MINIMUM AND 2.312 INCHES MAXIMUM
HEAD STYLE9 HEXAGON EXTENDED WASHER
HEAD HEIGHT0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.046 INCHES MINIMUM AND 1.078 INCHES MAXIMUM
POINT STYLE6 FLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.796 INCHES MINIMUM AND 1.828 INCHES MAXIMUM