20152 HS91SS DWG 20152

View detailed technical data, stock status, and sourcing information for: 20152 HS91SS DWG 20152
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-286-6620

Item Name Code

05488

Assigment Date

10/06/1988 (37 years ago)

disk flow control device, automatic valve operation method, round with holes all ends flange shape, spring disk loading method, 4 all ends bolt hole quantity

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
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.000 inches
Adjustable Pressure Range: +71.0 to 88.0 pounds per square inch
Nominal Outside Diameter: 4.250 inches all ends
Nominal Thickness: 0.375 inches all ends
First Connection Face To Centerline Distance: 3.500 inches
Bolt Hole Nominal Diameter: 0.625 inches all ends
Second Connection Face To Centerline Distance: 3.250 inches
Bolt Circle Nominal Diameter: 3.125 inches all ends
Flange Face Design: plain all ends
Material: steel body
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
20152 HS91SS DWG	Safety Relief Valve
20152 HS91SS DWG 20152	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-286-6620?

The FSCG of the NSN 4820-01-286-6620 is 4820

Does the NSN 4820-01-286-6620 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-286-6620 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 4820-01-286-6620 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-286-6620 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 4820-01-286-6620 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Oct 6, 1988