4820-00-404-8499

Find complete technical information, availability, and procurement data for: 4820-00-404-8499
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-404-8499

Item Name Code

27565

Assigment Date

08/06/1969 (57 years ago)

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.

plain first end style designator, threaded internal pipe first end connection type, air media for which designed, straight thru body style, unable to decode first end thread size and series/type 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
Media For Which Designed: air
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Thread Size And Series/Type Designator: unable to decode
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Flow Control Device: diaphragm
End Connection Quantity: 2
Outlet Pressure Range: +3.0 to 150.0 pounds per square inch
Regulation Type: manual single stage
Manual Control Method: knob
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 200.0 pounds per square inch
Filter: not included
Temp Rating: 160.0 fahrenheit maximum
Material: unable to decode

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-486-1011	No Name Available	06/01/2002

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
11-018-110	Fluid Pressure Regulating Valve
11-118-110	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-404-8499?

The FSCG of the NSN 4820-00-404-8499 is 4820

Does the NSN 4820-00-404-8499 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-00-404-8499 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-404-8499 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-404-8499 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 4820-00-404-8499 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Aug 6, 1969