NSN 5306-00-206-5570

Part Details | EXTERNALLY RELIEVED BODY BOLT

5306-00-206-5570 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: FFS85, FF-S-85, 5306-00-206-5570, 00-206-5570, 5306002065570, 002065570

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196100-206-557006675 ( BOLT, EXTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-206-5570
Part Number Cage Code Manufacturer
FF-S-8581348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
Technical Data | NSN 5306-00-206-5570
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.437 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.125 INCHES MINIMUM
FASTENER LENGTH2.812 INCHES NOMINAL
MINIMUM YIELD STRENGTH051000 POUNDS PER SQUARE INCH
HEAD STYLE HEXAGON
HEAD HEIGHT0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.674 INCHES MINIMUM AND 0.688 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FIRST DIAMETER FROM HEAD0.432 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD0.390 INCHES MINIMUM AND 0.394 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.250 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.688 INCHES NOMINAL