H-2637

View detailed technical data, stock status, and sourcing information for: H-2637
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-198-1165

Item Name Code

05488

Assigment Date

01/04/1985 (41 years ago)

An internal component of a pump which may be either totally enclosed within the pump for driving other internal components or it may extend beyond the pump housing to be either connected to an external power source or to provide power to other machinery.

plain,optional end(pipe) all ends connection style, right-hand all ends thread direction, automatic valve operation method, 406.0 fahrenheit single response maximum operating temp, 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 Direction: right-hand all ends
Flow Control Device: disk
Maximum Operating Temp: 406.0 fahrenheit single response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Thread Size: 3.000 inches all ends
Opening Pressure Setting: 10.0 pounds per square inch
Material: copper alloy body
Media For Which Designed: steam single response
Style Designator: angle
Thread Series Designator: npt 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
82-4 3 INCH	Safety Relief Valve
H-2637	Safety Relief Valve
H-2637 PART 37	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-198-1165?

The FSCG of the NSN 4820-01-198-1165 is 4820

Does the NSN 4820-01-198-1165 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-198-1165 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 4820-01-198-1165 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-198-1165 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 4820-01-198-1165 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Jan 4, 1985