4820-01-344-8999

Find complete technical information, availability, and procurement data for: 4820-01-344-8999
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-344-8999

Item Name Code

05488

Assigment Date

09/08/1991 (34 years ago)

bolted bonnet attachment method, disk flow control device, 1.000 inches all ends nominal pipe size accommodated, spring disk loading method, inside spring bonnet type

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: 1.000 inches all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Maximum Operating Temp: 150.0 fahrenheit 1st response425.0 fahrenheit 2nd response
Connection Style: socket all ends
Valve Operation Method: manual
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +110.0 to 160.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch 1st response200.0 pounds per square inch 2nd response
Special Features: incl adjusting ring
Material: copper alloy bodynickel alloy flow control devicenickel alloy seatsteel comp 316 stem
Material Document And Classification: astm-b61 assn std single material response bodyastm-b164 assn std single material response flow control deviceastm-b164 assn std single material response seat
Media For Which Designed: air 1st responsesteam 2nd response
Style Designator: angle
Furnished Items And Quantity: 1 lever

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
BCSAA07SEE	Safety Relief Valve
D1000 ASSY D52UU-07 1IN	Safety Relief Valve
D52UU-07 1IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-344-8999?

The FSCG of the NSN 4820-01-344-8999 is 4820

Does the NSN 4820-01-344-8999 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-344-8999 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 4820-01-344-8999 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-344-8999 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 4820-01-344-8999 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sun, Sep 8, 1991