4820-01-040-8741

Find complete technical information, availability, and procurement data for: 4820-01-040-8741
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-040-8741

Item Name Code

05488

Assigment Date

05/16/1977 (49 years ago)

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes:baroswitch; switch,pressure-thermostatic; and switch,sensitive.

piston flow control device, right-hand all ends thread direction, 2b all ends thread class, inside spring bonnet type, bolted bonnet attachment method

Product Characteristics

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

Thread Class: 2b all ends
Thread Direction: right-hand all ends
Flow Control Device: piston
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Valve Discharge Flow Rate: 45.0 gallons per minute
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: gasket seal(boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Adjustable Pressure Range: +1500.0 to 3000.0 pounds per square inch
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.875 inches all ends
Material: steel overall
Media For Which Designed: ethylene glycol 1st response
Media For Which Designed: oil, hydraulic 2nd response
Style Designator: cross
Thread Series Designator: unf 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
590413	Safety Relief Valve
CS03F40	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-040-8741?

The FSCG of the NSN 4820-01-040-8741 is 4820

Does the NSN 4820-01-040-8741 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-040-8741 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 4820-01-040-8741 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-040-8741 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 4820-01-040-8741 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Mon, May 16, 1977