Model: 643N
Safety Relief ValveProperties:
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.
Part 643N NSN 4820-00-167-8998
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsPackaging & Shipping
Freight Classification
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Schedule B and Export
- Schedule B: 8481400000
- SITC: 74740
- End Use: Industrial machines, other
- NAICS: 332911
- USDA: 1
Freight Class: Safety or relief valves
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