4820-00-134-4248 VALVE,VACUUM BREAKING Index 4820-00-134-4252 VALVE,PLUG

National Stock Number:
4730-00-134-4250

Federal Supply Class:
4730

National Item Identification Number:
001344250

Description:
RESTRICTOR,FLUID FLOW

Detail:
AN ITEM OF SOLID ONE-PIECE CONSTRUCTION, DESIGNED TO RESTRICT THE FLOW OF A FLUID THROUGH IT. IT HAS AN ORIFICE OF A SMALLER SIZE THAN THE DIAMETER OF FLOW INTO IT. EXCLUDES ITEMS SUCH AS VALVE (1), (AS MODIFIED); AND OTHERS WITH AN ADJUSTABLE ORIFICE. EXCLUDES PIPE, TUBE, OR HOSE FITTINGS WITH RESTRICTED PASSAGES AND ITEMS DESIGNED TO TEST FLUID FLOW. FOR ITEMS CONTAINING SCREENS OR FILTERS, SEE RESTRICTOR UNIT, FLUID FLOW.


Manufacturer Information:
A02L1117-377272THE BOEING COMPANY


Techincal Specification:
DESIGN TYPETUBULAR
LENGTH0.700 INCHES NOMINAL
OUTSIDE DIAMETER0.554 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
MATERIALSTEEL
ORIFICE DIAMETER0.175 INCHES NOMINAL
SURFACE TREATMENTOXIDE
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.430 INCHES NOMINAL
THREAD SERIESUNF 1ST PROVISION
THREAD PROVISIONTHREADED
THREAD SIZE DESIGNATOR9/16 IN.-18


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