B-63TF8-ST

View detailed technical data, stock status, and sourcing information for: B-63TF8-ST
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-431-9201

Item Name Code

20962

Assigment Date

05/21/1996 (30 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,optional end(pipe) all ends connection style, threaded internal pipe all ends connection type, manual valve operation method, divers life support system, transportable re-compression chamber system end item identification, right-hand all ends thread direction

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
End Item Identification: divers life support system, transportable re-compression chamber system
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Nominal Thread Size: 0.500 inches all ends
Special Features: cres 303/304 trim with black lever handle
Material: copper alloy body
Material: plastic polytetrafluoroethylene seat
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting stem
Style Designator: straight thru
Thread Series Designator: npt all ends

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
B-63TF8-QT-B	Ball Valve
B-63TF8-QT-BK	Ball Valve
B-63TF8-ST	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-431-9201?

The FSCG of the NSN 4820-01-431-9201 is 4820

Does NSN 4820-01-431-9201 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 4820-01-431-9201 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-431-9201 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 4820-01-431-9201 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, May 21, 1996