S1873

View detailed technical data, stock status, and sourcing information for: S1873
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-030-0933

Item Name Code

16991

Assigment Date

01/01/1963 (63 years ago)

An item that controls the flow of a fluid by rotation of a ported plug within a suitable ported seat. It must not have any lubrication other than from the fluid controlled, nor contain any nonmetallic seal between plug and seat. See also valve, seatless and valve, plug.

two way two port 90 degree plug turn flow style, right-hand 2nd end thread direction, gasket seal (boss) 2nd end connection style, 3b 2nd end thread class, right-hand 1st end 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: 3b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Style: two way two port 90 degree plug turn
Connection Style: gasket seal (boss) 2nd end
Connection Style: plain (pipe) 1st end
Valve Operation Method: manual
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal boss 2nd end
Features Provided: nonadjustable rotation
Thread Quantity Per Inch: 24 2nd end
Nominal Thread Size: 0.125 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Nominal Outside Diameter Tube Accommodated: 0.438 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.438 inches 2nd end
Material: copper alloy body
Material: copper alloy flow control device
Thread Series Designator: unf 1st end
Thread Series Designator: uns 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
S1873	Plug Cock

FAQs

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

What is the FSCG of the NSN 4820-00-030-0933?

The FSCG of the NSN 4820-00-030-0933 is 4820

Does the NSN 4820-00-030-0933 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-030-0933 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 4820-00-030-0933 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-030-0933 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 4820-00-030-0933 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963