4820-00-803-4976

Find complete technical information, availability, and procurement data for: 4820-00-803-4976
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-803-4976

Item Name Code

05487

Assigment Date

01/01/1962 (64 years ago)

right-hand 1st end thread direction, right-hand 2nd end thread direction, 3a 1st end thread class, 3b 2nd end thread class, poppet flow control device

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 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
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: 12 1st end
Thread Quantity Per Inch: 12 2nd end
Nominal Thread Size: 1.875 inches 1st end
Nominal Thread Size: 1.875 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 1.500 inches 1st end
Nominal Outside Diameter Tube Accommodated: 1.500 inches 2nd end
Special Features: grumman,a10 aircraft
Material: steel overall
Style Designator: straight thru
Thread Series Designator: un 1st end
Thread Series Designator: un 2nd 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
A361-115	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-803-4976?

The FSCG of the NSN 4820-00-803-4976 is 4820

Does the NSN 4820-00-803-4976 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-803-4976 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 4820-00-803-4976 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-803-4976 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 4820-00-803-4976 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962