4820-00-076-4383

Find complete technical information, availability, and procurement data for: 4820-00-076-4383
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-076-4383

Item Name Code

10958

Assigment Date

01/01/1963 (63 years ago)

A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude valve, vacuum breaking.

air media for which designed, 15.0 pounds per square inch maximum operating pressure, plain first end style designator, "angle give "adqm" and "adqn" only if flanged one or two ends" body style, threaded internal pipe 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.

Maximum Operating Pressure: 15.0 pounds per square inch
Body Style: "angle give "adqm" and "adqn" only if flanged one or two ends"
Media For Which Designed: air
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Nominal Pipe Size Accommodated: 1.000 inches
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded external pipe
Second End Style Designator: plain
Second End Nominal Pipe Size Accommodated: 1.500 inches
Second End Thread Direction: right-hand
Flow Control Device: disk, circular
End Connection Quantity: 2
Disk Loading Method: spring
Valve Venting Design Type: closed system
Special Features: seat material: rubber,buna-n and dacron,flow control device material: rubber,silicone and nylon
Material: copper alloy 511 stem
Material: copper alloy body
Material: rubber synthetic and plastic flow control device
Material: rubber butadiene-acrylonitrile class nbr seat

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
62A116D7	Gaseou Pressure Equalizing Valve
F202-1003-1	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-00-076-4383?

The FSCG of the NSN 4820-00-076-4383 is 4820

Does the NSN 4820-00-076-4383 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-076-4383 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 4820-00-076-4383 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-076-4383 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 4820-00-076-4383 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963