3/8 BR-B790-TT-X

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-033-1889

Item Name Code

20962

Assigment Date

10/26/1972 (53 years ago)

A multi-ported, nonlubricated valve designed to provide straight through flow or ability to direct a number of flows or pressure through a single valve. The flow is controlled by the rotation of a ported ball within a suitable ported seat(s). The ball is usually engaged by a stem. It is normally operated in an open or closed position. Excludes:valve, check.

366.0 fahrenheit 1st response maximum operating temp, manual valve operation method, 400.0 fahrenheit 2nd response maximum operating temp, socket all ends connection style, 0.375 inches all ends nominal pipe size accommodated

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.375 inches all ends
Maximum Operating Temp: 366.0 fahrenheit 1st response
Maximum Operating Temp: 400.0 fahrenheit 2nd response
Connection Style: socket all ends
Valve Operation Method: manual
Connection Type: unthreaded internal pipe all ends
Maximum Operating Pressure: 150.0 pounds per square inch 1st response
Maximum Operating Pressure: 1500.0 pounds per square inch 2nd response
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy stem
Material: plastic polytetrafluoroethylene seat
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru

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
25875	Ball Valve
3-8BR790TTP0	Ball Valve
3/8 BR-B790-TT-X	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-00-033-1889?

The FSCG of the NSN 4820-00-033-1889 is 4820

Does NSN 4820-00-033-1889 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 4820-00-033-1889 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-033-1889 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 4820-00-033-1889 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Thu, Oct 26, 1972