4820-01-357-9503

Find complete technical information, availability, and procurement data for: 4820-01-357-9503
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-357-9503

Item Name Code

05493

Assigment Date

05/05/1992 (34 years ago)

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

unthreaded internal tube first end connection type, 140.0 fahrenheit temp rating, socket first end style designator, refrigerant r-502 media for which designed, straight thru body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: straight thru
Temp Rating: 140.0 fahrenheit
Media For Which Designed: refrigerant r-502
First End Connection Type: unthreaded internal tube
First End Style Designator: socket
First End Outside Diameter Tube Accommodated: 0.625 inches nominal
Second End Relationship With First End: not identical
Second End Connection Type: unthreaded internal tube
Second End Style Designator: socket
Second End Outside Diameter Tube Accommodated: 0.500 inches nominal
Flow Control Device: disk, flat
End Connection Quantity: 2
Valve Expansion Control Type: thermostatic
Valve Evaporator Temp Range Designation: high
Valve Pressure Limiting Device: not included
Bulb Media Type: gas
Valve Equalizer Location: external
Valve Equalizer Connection Type: flared tube
Valve Equalizer Connection Diameter: 0.250 inches nominal
End Item Identification: 1190-01-326-9932
Refrigeration Capacity In Btu Per Hour: 6.0
Material: copper alloy body

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
SRE-1/2-L1	Expansion Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-357-9503?

The FSCG of the NSN 4820-01-357-9503 is 4820

Does the NSN 4820-01-357-9503 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-357-9503 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-01-357-9503 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-357-9503 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-01-357-9503 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Tue, May 5, 1992