4820-01-522-6054 VALVE ASSEMBLY,MANIFOLD Index 5331-01-522-6056 O-RING

National Stock Number:
5305-01-522-6055

Federal Supply Class:
5305

National Item Identification Number:
015226055

Description:
SCREW,MACHINE

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.


Manufacturer Information:
7226373-253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH0.438 INCHES NOMINAL
HEAD DIAMETER0.207 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE III
NOMINAL THREAD DIAMETER0.112 INCHES
SPECIAL FEATURESALTERED ITEM DRAWING
SCREW MATERIALSTEEL CORROSION RESISTING
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.438 INCHES NOMINAL
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNC


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