4820-01-440-7751

Find complete technical information, availability, and procurement data for: 4820-01-440-7751
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-440-7751

Item Name Code

05488

Assigment Date

01/24/1997 (29 years ago)

A device consisting of two or more valves of the same or different type in a common body or housing. It may have multiple end connections, and the valves function(s) may or may not be dependent of each other. For items consisting of two or more complete valves joined together, see valve assembly.

nimitz class cvn end item identification, 150.0 fahrenheit single response maximum operating temp, 4 all ends bolt hole quantity, spring disk loading method, 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.

Flow Control Device: disk
Disk Loading Method: spring
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 150.0 fahrenheit single response
End Item Identification: nimitz class cvn
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.500 inches
Adjustable Pressure Range: +20.0 to 24.0 pounds per square inch
Maximum Operating Pressure: 225.0 pounds per square inch single response
Nominal Outside Diameter: 5.000 inches all ends
Nominal Thickness: 0.440 inches all ends
First Connection Face To Centerline Distance: 4.750 inches
Bolt Hole Nominal Diameter: 0.620 inches all ends
Second Connection Face To Centerline Distance: 4.750 inches
Bolt Circle Nominal Diameter: 3.875 inches all ends
Flange Face Design: plain all ends
Part Name Assigned By Controlling Agency: 1 1/2in relief valve, type 1741-t
Material: copper alloy 922 body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
Material Document And Classification: astm b164 assn std single material response flow control device
Material Document And Classification: astm b164 assn std single material response stem
Material Document And Classification: astm b61 assn std single material response body
Material Document And Classification: qq-n-288 fed spec single material response seat
Style Designator: angle flanged 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
20334DM41M	Safety Relief Valve
BAMKK03MGG	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-440-7751?

The FSCG of the NSN 4820-01-440-7751 is 4820

Does the NSN 4820-01-440-7751 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-440-7751 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 4820-01-440-7751 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-440-7751 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 4820-01-440-7751 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Fri, Jan 24, 1997