4820-01-497-0585 VALVE,REGULATING,SYSTEM PRESSURE Index 5365-01-497-0587 SHIM

National Stock Number:
5305-01-497-0586

Federal Supply Class:
5305

National Item Identification Number:
014970586

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:
707260596169ELECTRIC BOAT CORPORATION
751-7072605-3853711NAVAL SEA SYSTEMS COMMAND
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH1.500 INCHES NOMINAL
HEAD DIAMETER0.480 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURESITEMUSED ON TORPEDO TUBE MUZZLE DOOR ASSEMBLB,RIGHT HAND;DISTRIBUTION STATEMENT D, DATA EXPORT CONTROLLED
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.339 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNRC


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