5305-00-712-0231 SETSCREW Index 5355-00-712-0255 KNOB

National Stock Number:
5306-00-712-0253

Federal Supply Class:
5306

National Item Identification Number:
007120253

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.


Manufacturer Information:
712025319207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
FASTENER LENGTH1.500 INCHES NOMINAL
HEAD HEIGHT0.438 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
SHOULDER DIAMETER0.4960 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER LENGTH0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM FIRST SHOULDER
SPECIAL FEATURESWASHER FACED BEARING SURFACE ON HEAD,THREAD RELIEF 0.060 IN. W
WIDTH BETWEEN FLATS0.750 INCHES NOMINAL
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.688 INCHES MINIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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