4820-00-639-9795

Find complete technical information, availability, and procurement data for: 4820-00-639-9795
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-639-9795

Item Name Code

05487

Assigment Date

01/01/1963 (63 years ago)

flared (tube) 1st end connection style, 3a 1st end thread class, disk flow control device, spring disk loading method, right-hand 1st end 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 1st end
Flow Control Device: disk
Disk Loading Method: spring
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Mounting Position: horizontal
Thread Quantity Per Inch: 12 1st end
Nominal Thread Size: 1.312 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 1.000 inches 1st end
Material: aluminum alloy seat
Material: aluminum alloy body
Material: steel corrosion resisting flow control device
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625,ty 2 mil spec single treatment response
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
1116-516671	Check Valve
3-39657-2	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-639-9795?

The FSCG of the NSN 4820-00-639-9795 is 4820

Does the NSN 4820-00-639-9795 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-639-9795 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 4820-00-639-9795 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-639-9795 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 4820-00-639-9795 was assigned to the Federal Catalog?

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