NSN 5305-00-531-9739

Part Details | THUMBSCREW

5305-00-531-9739 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: BYRF509, 5305-00-531-9739, 00-531-9739, 5305005319739, 005319739

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-531-973906673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

FLAT

DOUBLE HEXAGON FLATS

Cross Reference | NSN 5305-00-531-9739
Part Number Cage Code Manufacturer
BYRF50905624GE AVIATION SYSTEMS LLCDBA GE AVIATION
Technical Data | NSN 5305-00-531-9739
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.250 INCHES MAXIMUM
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD STYLE7 HEXAGON EXTENDED WASHER
HEAD HEIGHT0.562 INCHES NOMINAL
WIDTH BETWEEN FLATS0.844 INCHES NOMINAL
HOLE CONFIGURATION STYLE0 DOUBLE HEXAGON FLATS
POINT STYLE9 FLAT