4820-01-203-3998 VALVE,CHECK Index 4820-01-203-4000 VALVE,RESTRICTOR CHECK

National Stock Number:
4820-01-203-3999

Federal Supply Class:
4820

National Item Identification Number:
012033999

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.


Manufacturer Information:
10413346A486GNIMIKKEISTOKESKUS NCB FINLAND
D524B-1M-252U435DELA TECHNOLOGY CORPORATION
D524B-1M-2591816CIRCOR AEROSPACE, INC.


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
FLOW CONTROL DEVICEPLUG
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
OIL, CHLORINATED TRANSFORMER 2ND RESPONSE
OXYGEN, GASEOUS 3RD RESPONSE
OXYGEN, LIQUID 4TH RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH 1ST RESPONSE
200.0 POUNDS PER SQUARE INCH 2ND RESPONSE
200.0 POUNDS PER SQUARE INCH 3RD RESPONSE
200.0 POUNDS PER SQUARE INCH 4TH RESPONSE
MAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT 1ST RESPONSE
450.0 DEG FAHRENHEIT 2ND RESPONSE
450.0 DEG FAHRENHEIT 3RD RESPONSE
450.0 DEG FAHRENHEIT 4TH RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN (PIPE) 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
NOMINAL THREAD SIZE0.125 INCHES 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END


Click here to Register for Free 30-day Trial

© 2025 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us