Safety Relief Valve

Model / MPN: 9521 AND ML185 | NSN: 4820-01-052-3975

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.

Product Details

NATO Stock Number

4820-01-052-3975

Sold in multiples of

1 EA

DEMIL

Thread Direction

Right-hand all ends

Flow Control Device

Disk

End Application

Los angeles class ss (688)

Connection Style

G46b plain (pipe) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe all ends

Maximum Operating Pressure

50.0 pounds per square inch single response

Thread Size

0.500 inches 2nd end

Thread Size

0.750 inches 1st end

Material

Copper alloy body

Material Specification

Qq-c-390, alloy d4/d/ federal specification single material response body

Media For Which Designed

Air single response

Thread Series Designator

Npt all ends

9521 Series Parts

Pricing and Availability

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9521 AND ML185 Cross Reference

87CS165M0D31T50
87-CS-165 31T50 MODML-185
9521-31T50-ML-185
D42UU-03H-1/2-3/4
D42UU-03 1/2 X 3/4 IN.
200137
87CS165MOD31T50PSI
D42UU-03 1/2 X 3/4 IN.