4820-01-397-8627

Find complete technical information, availability, and procurement data for: 4820-01-397-8627
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-397-8627

Item Name Code

20962

Assigment Date

10/21/1994 (31 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

external seat for gasket seal (boss) 1st end connection style, plain (pipe) 2nd end connection style, 3a 1st end thread class, 125.0 fahrenheit single response maximum operating temp, 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 Class: 3a 1st end
Thread Direction: right-hand all ends
Maximum Operating Temp: 125.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: manual
Connection Type: threaded external boss 1st end
Connection Type: threaded internal pipe 2nd end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 2nd end
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Material: steel corrosion resisting body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Media For Which Designed: oxygen, gaseous single response
Style Designator: straight thru
Thread Series Designator: npt 2nd end
Thread Series Designator: unj 1st end
Furnished Items And Quantity: 1 handle

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
1828AS124	Ball Valve
1828AS124-1	Ball Valve
K104-27-20-02	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-397-8627?

The FSCG of the NSN 4820-01-397-8627 is 4820

Does the NSN 4820-01-397-8627 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803070

Does NSN 4820-01-397-8627 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 4820-01-397-8627 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-397-8627 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 4820-01-397-8627 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Oct 21, 1994