4820-00-857-6629

Find complete technical information, availability, and procurement data for: 4820-00-857-6629
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-857-6629

Item Name Code

16989

Assigment Date

01/01/1963 (63 years ago)

250.0 fahrenheit single response maximum operating temp, external seat for gasket seal (boss) 1st end connection style, 3a 1st end thread class, right-hand 1st end thread direction, poppet flow control device

Product Characteristics

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

Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 2500.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 1st end
Seat Angle: 37.0 degrees 1st end
Material: steel comp 303 body
Material: steel corrosion resisting flow control device
Material Document And Classification: 66, comp 4147 fed std single material response flow control device
Media For Which Designed: air single response
Surface Treatment: passivate
Style Designator: straight thru
Thread Series Designator: unj 1st end
Furnished Items And Quantity: 1 filter

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
2D1550	Poppet Drain Cock

FAQs

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

What is the FSCG of the NSN 4820-00-857-6629?

The FSCG of the NSN 4820-00-857-6629 is 4820

Does the NSN 4820-00-857-6629 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-857-6629 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 4820-00-857-6629 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-857-6629 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 4820-00-857-6629 was assigned to the Federal Catalog?

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