4820-01-646-3174 VALVE,SAFETY RELIEF 4820-01-646-3620 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-646-3557

Federal Supply Class:
4820

National Item Identification Number:
016463557

Description:
STEM,FLUID VALVE


Manufacturer Information:
138571480064NAVAL SHIP SYSTEMS COMMAND
803-1385714-4X-3880064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
LARGEST OUTSIDE DIAMETER0.681 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-B164 NATIONAL SPEC 1ST MATERIAL RESPONSE OR QQ-N-286 FED SPEC 2ND MATERIAL RESPONSE
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY K-500
PROPRIETARY CHARACTERISTICSPACS
OVERALL LENGTH4.297 INCHES NOMINAL
SPECIAL FEATURESSTEM THREADS TO BE LUBRICATED AS FOLLOWS: GRAPHITE IN ISOPROPANOL PER MIL-L-24131; APPLY TWO SUCCESSIVE, UNIFORM COATS, ALLOWING FIRST COAT TO DRY BEFORE APPLYING SECOND.
VALVE SIZE FOR WHICH DESIGNED0.75 INCHES
VALVE TYPE FOR WHICH DESIGNEDGATE
STEM ACTUATING END TYPETHREADED EXTERNALLY


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