4820-00-237-5791

Find complete technical information, availability, and procurement data for: 4820-00-237-5791
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-237-5791

Item Name Code

05488

Assigment Date

01/11/1968 (58 years ago)

disk flow control device, spring disk loading method, 1.000 inches 1st end nominal pipe size accommodated, bolted bonnet attachment method, inside spring bonnet type

Product Characteristics

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

Nominal Pipe Size Accommodated: 1.000 inches 1st end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 180.0 fahrenheit single response
Connection Style: socket with brazing ring 1st end
Valve Operation Method: hydraulic
Connection Type: unthreaded internal pipe 1st end
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +5.0 to 1500.0 pounds per square inch
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Criticality Code Justification: zzzy
Opening Pressure Setting: 185.0 pounds per square inch
Material: copper alloy 922 body
Material: nickel alloy 400 seat
Material: nickel alloy 400 stem
Media For Which Designed: water, fresh single response
Style Designator: angle
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
8720M0D	Safety Relief Valve
E8720PM41M	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-237-5791?

The FSCG of the NSN 4820-00-237-5791 is 4820

Does the NSN 4820-00-237-5791 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-237-5791 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 4820-00-237-5791 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-237-5791 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 4820-00-237-5791 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Thu, Jan 11, 1968