4820-00-274-3643

Find complete technical information, availability, and procurement data for: 4820-00-274-3643
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-274-3643

Item Name Code

16991

Assigment Date

01/01/1963 (63 years ago)

manual valve operation method, right-hand all ends thread direction, 150.0 fahrenheit single response maximum operating temp, plain, optional end (pipe) all ends connection style, two way two port 90 degree plug turn flow style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand all ends
Flow Style: two way two port 90 degree plug turn
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Maximum Operating Pressure: 125.0 pounds per square inch single response
Nominal Thread Size: 1.250 inches all ends
Material: copper alloy overall
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Thread Series Designator: npt all ends
Furnished Items And Quantity: 1 wrench
Specification/Standard Data: 81349-mil-c-1203 government specification
Nondefinitive Spec/Std Data: 2 type and a style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-142-3051	No Name Available	12/22/1998
4820-00-203-3371	No Name Available	01/31/1969
4820-00-287-4416	No Name Available	01/01/1996
4820-00-595-0395	No Name Available	12/28/1971
4820-00-693-1527	No Name Available	12/28/1971
4820-00-808-8052	No Name Available	09/01/2023
4820-00-810-1640	No Name Available	01/31/1969
4820-00-881-1270	No Name Available	03/01/1977
4820-00-965-8380	No Name Available	07/29/1985

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
250-1 1/4	Plug Cock
250-1 1/4IN	Plug Cock
250-1 1/4IN 125	Plug Cock
31321651 1-4-75F	Plug Cock
50168	Plug Cock
806-1-2	Plug Cock
9702	Plug Cock

FAQs

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

What is the FSCG of the NSN 4820-00-274-3643?

The FSCG of the NSN 4820-00-274-3643 is 4820

Does the NSN 4820-00-274-3643 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-274-3643 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 4820-00-274-3643 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-274-3643 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 4820-00-274-3643 was assigned to the Federal Catalog?

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