5306-00-693-6655 BOLT,EYE Index 1560-00-693-6658 RETAINER,NOSE LANDING GEAR

National Stock Number:
5306-00-693-6656

Federal Supply Class:
5306

National Item Identification Number:
006936656

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
726387-398897LOCKHEED MARTIN CORP


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER4.052 INCHES MINIMUM AND 4.084 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH4.249 INCHES MINIMUM AND 4.296 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH3.719 INCHES MINIMUM AND 3.729 INCHES MAXIMUM
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.875 INCHES
SHANK UNTHREADED HOLE DIAMETER0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURESUNDERCUT 0.060 IN. NOM LG,0.844 IN. MIN,0.854 IN.MAX DIA LOCATED UNDER BEARING SURFACE OF HEAD
WIDTH BETWEEN FLATS1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENTCHROMIUM GRIP
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.520 INCHES MINIMUM AND 0.577 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH14


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