4820-01-244-5300

Find complete technical information, availability, and procurement data for: 4820-01-244-5300
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-244-5300

Item Name Code

20520

Assigment Date

11/14/1986 (39 years ago)

275.0 fahrenheit single response maximum operating temp, disk flow control device, spring disk loading method, 3a all ends thread class, 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 all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 18 1st end
Thread Quantity Per Inch: 20 2nd end
Maximum Operating Pressure: 3500.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 2nd end
Nominal Thread Size: 0.562 inches 1st end
Criticality Code Justification: feat
Special Features: weapon system essential
Material: steel corrosion resisting body
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: straight thru
Thread Series Designator: unj 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
68A690617	Restrictor Check Valve
6F3324	Restrictor Check Valve
7M901-1	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-244-5300?

The FSCG of the NSN 4820-01-244-5300 is 4820

Does the NSN 4820-01-244-5300 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-244-5300 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-244-5300 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-244-5300 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 4820-01-244-5300 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Nov 14, 1986