4820-01-477-9754

Find complete technical information, availability, and procurement data for: 4820-01-477-9754
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-477-9754

Item Name Code

05488

Assigment Date

08/25/2000 (25 years ago)

A definite continuous length of cable,special purpose,electrical, having one or more ends processed or terminated in fittings which provide for connectionn to other items. For items which the rated working is 300 volts or more, see: cable assembly,power,electrical. Excludes items having branches or forks. Excludes: lead,test and cable and conduit assembly,electrical.

spring disk loading method, inside spring bonnet type, disk flow control device, bolted bonnet attachment method, pressed-in 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: pressed-in
Maximum Operating Temp: 165.0 fahrenheit single response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 400.0 pounds per square inch single response
Opening Pressure Setting: 100.0 pounds per square inch
Part Name Assigned By Controlling Agency: "1/2" relief valve typ 1551-t"
Special Features: spring material is stainless steel; vent must be open to atmosphere or piped to downstream piping
Material: copper alloy 922 body
Material: nickel alloy r-405 seat
Material: nickel alloy r-405 stem
Material: nickel alloy r-405 flow control device
Material Document And Classification: astmb-61 assn std single material response body
Material Document And Classification: qq-n-281 or astm b164 fed spec single material response flow control device
Material Document And Classification: qq-n-281 or astm b164 fed spec single material response seat
Material Document And Classification: qq-n-281 or astm b164 fed spec single material response stem
Style Designator: angle
Furnished Items And Quantity: 1 cap and 1 locking device

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
SW13301E00/CDS17052	Safety Relief Valve
SW133B01E0100	Safety Relief Valve
SW133B01E0100/CDS17052	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-477-9754?

The FSCG of the NSN 4820-01-477-9754 is 4820

Does the NSN 4820-01-477-9754 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-477-9754 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 4820-01-477-9754 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-477-9754 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 4820-01-477-9754 was assigned to the Federal Catalog?

It was assigned 25 years ago, on Fri, Aug 25, 2000