NSN 5306-01-320-3946

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-01-320-3946 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: 4075449, 4075449, 5306-01-320-3946, 01-320-3946, 5306013203946, 013203946

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 24, 199001-320-394606675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-01-320-3946
Part Number Cage Code Manufacturer
40754490UCY9M.S. AEROSPACE INC.
407544977445UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS
Technical Data | NSN 5306-01-320-3946
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.310 INCHES NOMINAL
FASTENER LENGTH1.325 INCHES MINIMUM AND 1.335 INCHES MAXIMUM
HEAD STYLE HEXAGON EXTENDED WASHER
HEAD HEIGHT0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.497 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.006 INCHES MINIMUM AND 0.016 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.194 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.015 INCHES MINIMUM AND 1.025 INCHES MAXIMUM
SPECIAL FEATURESSURFACE FINISH OF SHANK AND THREADS IS 32 MICROINCHES
END ITEM IDENTIFICATIONF100PW0229 ENGINE/CORE MOD