NSN 4820-01-439-5021 AF720A, 01-439-5021, 014395021

Product Details | SAFETY RELIEF VALVE


4820-01-439-5021 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 Alternates: AF720A, 4820-01-439-5021, 01-439-5021, 4820014395021, 014395021

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 10 DEC 1996 01-439-5021


Cross Reference | NSN 4820-01-439-5021


Part Number Cage Code Manufacturer
AF720A 24123 GAST MFG CORP

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Technical Data | NSN 4820-01-439-5021


Characteristic Specifications
VALVE OPERATION METHOD AUTOMATIC
SPECIAL FEATURES MUST NOT EXCEED 200 CC LEAKAGE AT 55/60 PSIG; BALL SEATED AT 600 PSI DURING ASSY; 2.310 IN. MIN 2.410 IN. MAX LG

Restrictions/Controls & Freight Information | NSN 4820-01-439-5021


Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information

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