NSN 5306-00-437-3572

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-00-437-3572 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Alternate Parts: 1788246, 5306-00-437-3572, 00-437-3572, 5306004373572, 004373572

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 10, 196900-437-357206675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON LONGITUDINAL HOLE

Cross Reference | NSN 5306-00-437-3572
Part Number Cage Code Manufacturer
178824610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5306-00-437-3572
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.375 INCHES MINIMUM
FASTENER LENGTH1.031 INCHES NOMINAL
HEAD STYLE HEXAGON
HEAD HEIGHT0.187 INCHES NOMINAL
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL
HOLE CONFIGURATION STYLE HEXAGON LONGITUDINAL HOLE
HOLE TYPE DRILLED
HOLE QUANTITY2
HOLE DIAMETER0.062 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY4
FIRST DIAMETER FROM HEAD0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD0.199 INCHES MINIMUM AND 0.201 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD0.182 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.219 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.438 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER0.656 INCHES NOMINAL