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4820-00-421-5837

Find complete technical information, availability, and procurement data for: 4820-00-421-5837

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4820-00-421-5837
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-421-5837
Item Name Code
27565
Assigment Date
02/09/1972 (54 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

automatic relief valve furnished items, air media for which designed, flared first end style designator, 0.250 inches nominal first end outside diameter tube accommodated, threaded external tube first end connection type

Product Characteristics

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

Furnished Items
automatic relief valve
Media For Which Designed
air
First End Connection Type
threaded external tube
First End Style Designator
flared
First End Outside Diameter Tube Accommodated
0.250 inches nominal
First End Thread Size And Series/Type Designator
unable to decode
First End Thread Class
3a
First End Thread Direction
right-hand
Second End Relationship With First End
not identical
Second End Connection Type
threaded internal boss
Second End Style Designator
gasket seal
Second End Thread Size And Series/Type Designator
unable to decode
Second End Thread Class
3b
Second End Thread Direction
right-hand
First End Seat Angle In Deg
37.0
Flow Control Device
poppet
End Connection Quantity
2
Outlet Pressure Range
+33.0 to 35.8 pounds per square inch
Regulation Type
automatic single stage
Valve Loading Method
spring
Maximum Inlet Pressure Rating
80.0 pounds per square inch
Filter
included
Temp Rating
-65.0 fahrenheit minimum and 270.0 fahrenheit maximum
Special Features
the end connection identified above as the second end is the valve inlet

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
2365-0001-1 Fluid Pressure Regulating Valve
A51E9064-1 Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-421-5837?
The FSCG of the NSN 4820-00-421-5837 is 4820
Does the NSN 4820-00-421-5837 have a Schedule B code assigned?
Yes, the Schedule B code is 8481809015
Does NSN 4820-00-421-5837 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 4820-00-421-5837 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-421-5837 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 4820-00-421-5837 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Wed, Feb 9, 1972

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