Product Details | STEAM AIR VENTING VALVE

4520-00-203-4987 An automatic valve designed to relieve, automatically, accumulated air in various types of steam heating systems.

Part Alternates: WWV151, 4520-00-203-4987, 00-203-4987, 4520002034987, 002034987

Plumbing, Heating, and Waste Disposal Equipment | Space and Water Heating Equipment

Supply Group (FSG) NSN Assign. NIIN
45 01 JAN 1963 00-203-4987

Cross Reference | NSN 4520-00-203-4987

Part Number Cage Code Manufacturer
WWV151 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 4520-00-203-4987

Characteristic Specifications
VALVE CONNECTION SIZE 0.125 INCHES
VALVE TYPE STEAM RADIATOR AIR VENT
MAXIMUM OPERATING PRESSURE 10.0 POUNDS PER SQUARE INCH
VALVE WATER PRESSURE POSITION CLOSED
VALVE AIR RETURN PREVENTION REQUIRED
VALVE SHAPE STRAIGHT W/FEMALE TAPPED DRIP CONNECTION
MATERIAL BRASS
SURFACE TREATMENT CHROMIUM
NONDEFINITIVE SPEC/STD DATA II TYPE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE WWV151

Restrictions/Controls & Freight Information | NSN 4520-00-203-4987

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information