8405-01-522-2137 COVERALLS,UTILITY Index 4720-01-522-2139 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
5305-01-522-2138

Federal Supply Class:
5305

National Item Identification Number:
015222138

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
7226367-953711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURESALTERED ITEM DRAWING
WIDTH ACROSS FLATS0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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