20CS169-171T200PSI

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-528-1353

Item Name Code

05488

Assigment Date

03/04/2005 (21 years ago)

Two or more sizes and/or types of gaskets grouped together in a single package and intended for individual repeated replacement and/or general use. See also gasket set.

automatic valve operation method, spring disk loading method, socket all ends connection style, 0.843 inches all ends nominal pipe size accommodated, nuclear reactor boundry area. end item identification

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: 0.843 inches all ends
Disk Loading Method: spring
End Item Identification: nuclear reactor boundry area.
Connection Style: socket all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +171.0 to 200.0 pounds per square inch
Part Name Assigned By Controlling Agency: 1/2 inch angle relief valve
Material: nickel alloy seat
Style Designator: angle

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
0952001A0171	Safety Relief Valve
20CS169	Safety Relief Valve
20CS169-171T200PSI	Safety Relief Valve
9520-171T200PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-528-1353?

The FSCG of the NSN 4820-01-528-1353 is 4820

Does the NSN 4820-01-528-1353 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-528-1353 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 4820-01-528-1353 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-528-1353 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 4820-01-528-1353 was assigned to the Federal Catalog?

It was assigned 21 years ago, on Fri, Mar 4, 2005