4820-01-111-3989

Find complete technical information, availability, and procurement data for: 4820-01-111-3989
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-111-3989

Item Name Code

05488

Assigment Date

04/16/1981 (45 years ago)

2a 1st end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction, flared (tube) 1st end connection style, disk 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: 2a 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Connection Style: flared (tube) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 2nd end
Connection Type: threaded external tube 1st end
Nominal Thread Size: 0.500 inches 2nd end
Nominal Thread Size: 0.625 inches 1st end
Seat Angle: 37.0 degrees 1st end
Opening Pressure Setting: 400.0 pounds per square inch
Material: copper alloy body
Material: rubber synthetic flow control device
Style Designator: straight thru note: to be used for valve bodies of separable sections.
Thread Series Designator: npt 2nd end
Thread Series Designator: unf 1st 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
A15504-400	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-111-3989?

The FSCG of the NSN 4820-01-111-3989 is 4820

Does the NSN 4820-01-111-3989 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-111-3989 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 4820-01-111-3989 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-111-3989 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 4820-01-111-3989 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Thu, Apr 16, 1981