4320-00-066-1328 RING,WEARING Index 5310-00-066-1331 WASHER,FLAT

National Stock Number:
5306-00-066-1329

Federal Supply Class:
5306

National Item Identification Number:
000661329

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:
779186419200US ARMY ARDEC RDECOM
779186419205SPRINGFIELD ARMORY


Techincal Specification:
FASTENER LENGTH0.862 INCHES NOMINAL
GRIP LENGTH0.823 INCHES NOMINAL
HARDNESS RATING35.0 ROCKWELL C MINIMUM OVERALL AND 42.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD DIAMETER0.492 INCHES NOMINAL
HEAD STYLEROUND W/WRENCH FLATS
NOMINAL THREAD DIAMETER0.250 INCHES
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 420 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
WIDTH BETWEEN FLATS0.442 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171,5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.390 INCHES MINIMUM AND 0.420 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


Click here to Register for Free 30-day Trial