4820-01-142-3263

Find complete technical information, availability, and procurement data for: 4820-01-142-3263
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-142-3263

Item Name Code

20520

Assigment Date

11/14/1982 (43 years ago)

poppet flow control device, right-hand all ends thread direction, 5.000 inches nominal aperture diameter, 3b all ends thread class, spring disk loading method

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand all ends
Aperture Diameter: 5.000 inches nominal
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: -65.0 fahrenheit 1st response
Maximum Operating Temp: 275.0 fahrenheit 2nd response
Connection Style: gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 2375.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Material: aluminum alloy 2024 body
Material: steel comp 440c flow control device
Material: steel comp 440c seat
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: straight thru
Thread Series Designator: unjf 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
1193-1	Restrictor Check Valve
1193-1/-2	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-142-3263?

The FSCG of the NSN 4820-01-142-3263 is 4820

Does the NSN 4820-01-142-3263 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-142-3263 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 4820-01-142-3263 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-142-3263 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 4820-01-142-3263 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Sun, Nov 14, 1982