NSN 5306-00-207-5172

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-00-207-5172 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: 237205, 237205, 5306-00-207-5172, 00-207-5172, 5306002075172, 002075172

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-207-517206675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON EXTENDED WASHER

Cross Reference | NSN 5306-00-207-5172
Part Number Cage Code Manufacturer
23720556878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
23720577445UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS
Technical Data | NSN 5306-00-207-5172
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
NONSTANDARD THREAD PITCH DIAMETER+0.2213 TO +0.2238 INCHES
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.512 INCHES MINIMUM AND 0.542 INCHES MAXIMUM
FASTENER LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON EXTENDED WASHER
HEAD HEIGHT0.272 INCHES MINIMUM AND 0.292 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.300 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.065 INCHES MINIMUM AND 0.125 INCHES MAXIMUM