National Item Identification Number
00-289-1857
002891857
4820-00-289-1857
4820-00-289-1857
National Stock Number
Item Name
VALVE,SAFETY RELIEF
Federal Supply Class
4820
Description
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.
Commercial and Government Entity Code (Supplier Data)
71905
DERBYSHIRE MACHINE & TOOL CO. INC.
DBA DERBYSHIRE MACHINE AND TOOL CO.
5100 BELFIELD AVE.
PHILADELPHIA
PA
19144
215-844-3200
Reference Numbers (Part Numbers)
E405ALT2
E523
402042ALT1
71S102
Required Categories
MATERIAL
STYLE DESIGNATOR
FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNED
MAXIM
Required Description
COPPER ALLOY BODY
NICKEL ALLOY SEAT
COPPER ALLOY STEM
C1 ANGLE
DISK
WATER,