National Item Identification Number

01-156-8240
011568240
4820-01-156-8240
4820-01-156-8240

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)

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Reference Numbers (Part Numbers)

75322-6
75322-61

Required Categories

MATERIAL
STYLE DESIGNATOR
FLOW CONTROL DEVICE
VALVE OPERATION METHOD
CONNECT

Required Description

STEEL CORROSION RESISTING BODY
A1 STRAIGHT THRU
PISTON
AUTOMATIC
THREADED IN