2620-908X5ASSYMX

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-228-1955

Item Name Code

05487

Assigment Date

02/14/1969 (57 years ago)

external seat for gasket seal (boss) 1st end connection style, disk flow control device, spring disk loading method, right-hand 1st end thread direction, 2a 1st end thread class

Product Characteristics

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

Thread Class: 2a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Disk Loading Method: spring
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Mounting Position: vertical or horizontal
Thread Quantity Per Inch: 12 1st end
Nominal Thread Size: 1.188 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: rubber seat
Material: steel comp 303 body
Material: steel comp 303 flow control device
Style Designator: straight thru
Thread Series Designator: un 1st end

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
170304N1	Check Valve
2620-908X5ASSYMX	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-228-1955?

The FSCG of the NSN 4820-00-228-1955 is 4820

Does the NSN 4820-00-228-1955 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-228-1955 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 4820-00-228-1955 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-228-1955 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 4820-00-228-1955 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Feb 14, 1969