4820-00-161-1638

Find complete technical information, availability, and procurement data for: 4820-00-161-1638
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 4820-00-161-1638 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-161-1638

Item Name Code

20520

Assigment Date

11/03/1971 (54 years ago)

3a all ends thread class, -65.0 fahrenheit minimum operating temp, right-hand all ends thread direction, flareless all ends connection style, 275.0 fahrenheit single response maximum operating temp

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 all ends
Thread Direction: right-hand all ends
Maximum Operating Temp: 275.0 fahrenheit single response
Minimum Operating Temp: -65.0 fahrenheit
Connection Style: flareless all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 2nd end
Nominal Thread Size: 0.562 inches 1st end
Seat Angle: 12.0 degrees all ends
Material: aluminum alloy 2024 body
Material: steel comp 303 flow control device
Media For Which Designed: hydraulic fluid, petroleum base single response
Surface Treatment: anodize
Style Designator: straight thru
Thread Series Designator: unf 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
2-43928-11	Restrictor Check Valve
6F2074-11	Restrictor Check Valve
B1038-11	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-161-1638?

The FSCG of the NSN 4820-00-161-1638 is 4820

Does the NSN 4820-00-161-1638 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-161-1638 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 4820-00-161-1638 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-161-1638 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 4820-00-161-1638 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Nov 3, 1971