NSN 5306-01-339-8856

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-01-339-8856 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: 17P2A23881, 17P2A2388-1, 5306-01-339-8856, 01-339-8856, 5306013398856, 013398856

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 04, 199101-339-885606675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

Cross Reference | NSN 5306-01-339-8856
Part Number Cage Code Manufacturer
17P2A2388-188277BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 5306-01-339-8856
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.343 INCHES NOMINAL
FASTENER LENGTH1.763 INCHES MINIMUM AND 1.793 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE DISHED HEXAGON
HEAD HEIGHT0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.676 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.437 INCHES NOMINAL
SECOND DIAMETER FROM HEAD0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.706 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.763 INCHES MINIMUM AND 1.793 INCHES MAXIMUM
SPECIAL FEATURES0.363" NOM GRIP LENGTH