4820-01-199-7881

Find complete technical information, availability, and procurement data for: 4820-01-199-7881
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-199-7881

Item Name Code

05488

Assigment Date

01/25/1985 (41 years ago)

inside spring bonnet type, spring disk loading method, 8 all ends bolt hole quantity, disk flow control device, union 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.

Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Bolt Hole Quantity: 8 all ends
End Item Identification: fleet modernization program-cruise/destroyers
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 4.000 inches
Adjustable Pressure Range: +70.0 to 81.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 9.000 inches all ends
Nominal Thickness: 0.688 inches all ends
First Connection Face To Centerline Distance: 5.812 inches
Bolt Hole Nominal Diameter: 0.750 inches all ends
Second Connection Face To Centerline Distance: 5.812 inches
Bolt Circle Nominal Diameter: 7.500 inches all ends
Flange Face Design: plain all ends
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: nickel alloy stem
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:

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46H0206/M5FLGE150LB4IN70T181PSI	Safety Relief Valve
46H0206/M5FLGE150LB4IN70T81PSI	Safety Relief Valve
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NMP1106 0PTI0N	Safety Relief Valve
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FAQs

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

What is the FSCG of the NSN 4820-01-199-7881?

The FSCG of the NSN 4820-01-199-7881 is 4820

Does the NSN 4820-01-199-7881 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-199-7881 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 4820-01-199-7881 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-199-7881 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 4820-01-199-7881 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Jan 25, 1985