1430-00-342-4947 VALVE Index 5305-00-342-4949 SCREW

National Stock Number:
5306-00-342-4948

Federal Supply Class:
5306

National Item Identification Number:
003424948

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:
817140718876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
FASTENER LENGTH2.609 INCHES MINIMUM AND 2.641 INCHES MAXIMUM
HEAD HEIGHT0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SHOULDER DIAMETER0.375 INCHES NOMINAL FIRST SHOULDER
SHOULDER SHAPEROUND FIRST SHOULDER
SHOULDER LENGTH1.406 INCHES NOMINAL FIRST SHOULDER
SPECIAL FEATURESSHOULDER THREADED 3/8-48NS-2A
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL
SURFACE TREATMENTNICKEL OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH20


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