4820-01-026-2931

Find complete technical information, availability, and procurement data for: 4820-01-026-2931
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-026-2931

Item Name Code

05487

Assigment Date

08/21/1976 (50 years ago)

right-hand all ends thread direction, 3a 1st end thread class, spring disk loading method, poppet flow control device, 3b 2nd 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: 3a 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 300.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: gasket seal (boss) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal boss 2nd end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 18 1st end
Maximum Operating Pressure: 60.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 37.0 degrees 1st end
Special Features: inlet flow from boss end
Material: aluminum alloy 2024 body
Material: aluminum alloy 6061 flow control device
Material Document And Classification: qq-a-225/6 fed spec single material response body
Material Document And Classification: qq-a-225/8 fed spec single material response flow control device
Media For Which Designed: fuel/oil, hydrocarbon single response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625 mil spec single treatment 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
3R1682	Check Valve
P51-389	Check Valve
ST7M396	Check Valve
ST7M396-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-026-2931?

The FSCG of the NSN 4820-01-026-2931 is 4820

Does the NSN 4820-01-026-2931 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-026-2931 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 4820-01-026-2931 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-026-2931 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 4820-01-026-2931 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, Aug 21, 1976