4820-00-188-8261

Find complete technical information, availability, and procurement data for: 4820-00-188-8261
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-188-8261

Item Name Code

05483

Assigment Date

03/10/1971 (55 years ago)

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

disk flow control device, 400.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, threaded bonnet attachment method, inside screw bonnet type

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Maximum Operating Temp: 400.0 fahrenheit single response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Features Provided: bonnet packing
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Material: copper alloy 922 body
Material: copper alloy 922 seat
Material: copper alloy 922 stem
Material Document And Classification: qq-c-390,alloy d4/d fed spec single material response seat
Material Document And Classification: qq-c-390,alloy d4/d fed spec single material response stem
Material Document And Classification: qq-c-390alloyd4/d fed spec single material response body
Media For Which Designed: steam single response
Style Designator: angle
Thread Series Designator: npt all ends
Nondefinitive Spec/Std Data: 2 type and c class

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-270-6066	No Name Available	07/23/1974
4820-00-865-7104	No Name Available	09/01/2023
4820-00-995-0742	No Name Available	09/01/2023

FAQs

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

What is the FSCG of the NSN 4820-00-188-8261?

The FSCG of the NSN 4820-00-188-8261 is 4820

Does the NSN 4820-00-188-8261 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-00-188-8261 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 4820-00-188-8261 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-188-8261 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 4820-00-188-8261 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Mar 10, 1971