National Item Identification Number

01-329-4959
013294959
4820-01-329-4959
4820-01-329-4959

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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16497

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DRESSER INC.
DBA DRESSER EQUIPMENT GROUP DIV
HWY 3225 AT LA HWY 167 N
ALEXANDRIA
LA
71309
318-640-6031

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38056

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ASHCROFT INC
DBA DRESSER INSTRUMENTS DIV DRESSER
250 E MAIN ST
STRATFORD
CT
06614
203-385-0611

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Reference Numbers (Part Numbers)

1982C 2 X 2.50IN
1982C 2IN X 2 1

Required Categories

MATERIAL
STYLE DESIGNATOR
FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE
MAX

Required Description

STEEL BODY
STEEL CORROSION RESISTING FLOW CONTROL DEVICE
STEEL STEM
C1 ANGLE;