20185PS41M

View detailed technical data, stock status, and sourcing information for: 20185PS41M
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-464-2500

Item Name Code

05488

Assigment Date

03/03/1972 (54 years ago)

bolted bonnet attachment method, disk flow control device, inside spring bonnet type, spring disk loading method, threaded renewable seat ring type

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: bolted
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 8 all ends
Maximum Operating Temp: 250.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 3.000 inches
Adjustable Pressure Range: +121.0 to 135.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Outside Diameter: 8.125 inches all ends
Nominal Thickness: 0.938 inches all ends
First Connection Face To Centerline Distance: 6.000 inches
Bolt Hole Nominal Diameter: 0.812 inches all ends
Second Connection Face To Centerline Distance: 6.000 inches
Bolt Circle Nominal Diameter: 6.562 inches all ends
Flange Face Design: plain all ends
Special Features: as differentiated by the end connection type and adjustable pressure range requirements
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:

Part Number	Name
1741T	Safety Relief Valve
20185PS41M	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-464-2500?

The FSCG of the NSN 4820-00-464-2500 is 4820

Does the NSN 4820-00-464-2500 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-464-2500 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 4820-00-464-2500 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-464-2500 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 4820-00-464-2500 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Mar 3, 1972