4820-01-328-2864

Find complete technical information, availability, and procurement data for: 4820-01-328-2864
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-328-2864

Item Name Code

27565

Assigment Date

10/30/1990 (35 years ago)

A value designed to automatically maintain within close limits a predetermined pressure within a closed system regardless of the higher fluctuating or constant inlet pressure. The excess pressure is by-passed to the accumulator or reservoir in lieu of passing through the entire system. It is designed primarily for use in refrigeration and air conditioning systems. Excludes:valve, regulating, fluid pressure and valve, calibrated flow.

straight thru body style, unthreaded internal pipe first end connection type, water, salt media for which designed, unable to decode stem material, socket w/brazing ring first end style designator

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
Stem Material: unable to decode
Media For Which Designed: water, salt
First End Connection Type: unthreaded internal pipe
First End Style Designator: socket w/brazing ring
First End Nominal Pipe Size Accommodated: 0.375 inches
Second End Relationship With First End: identical
Flow Control Device: disk
Flow Control Device Material: unable to decode
End Connection Quantity: 2
Outlet Pressure Range: +25.0 to 60.0 pounds per square inch
Regulation Type: automatic single stage
Valve Stem Design: single seat
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 250.0 pounds per square inch
Filter: not included
Temp Rating: 165.0 fahrenheit nominal
Criticality Code Justification: feat
Special Features: weapon system essential. features - with o-ring and retainer ring.
Material: unable to decode
Material Document And Classification: unable to decode

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
30803999	Fluid Pressure Regulating Valve
436 MARK I 30803999	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-01-328-2864?

The FSCG of the NSN 4820-01-328-2864 is 4820

Does the NSN 4820-01-328-2864 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-328-2864 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 4820-01-328-2864 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-328-2864 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 4820-01-328-2864 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Tue, Oct 30, 1990