4820-01-299-4011

Find complete technical information, availability, and procurement data for: 4820-01-299-4011
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-299-4011

Item Name Code

05488

Assigment Date

04/30/1989 (37 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

spring disk loading method, right-hand all ends thread direction, threaded bonnet attachment method, disk flow control device, inside screw bonnet type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Nominal Thread Size: 0.500 inches 1st end
Nominal Thread Size: 0.750 inches 2nd end
Opening Pressure Setting: 300.0 pounds per square inch
Material: copper alloy 360 or copper alloy 922 body
Material: copper alloy 360 flow control device
Material: copper alloy 360 stem
Media For Which Designed: steam single response
Style Designator: angle
Thread Series Designator: npt all 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
18252-F REV A	Safety Relief Valve
1856M-OL 1/2IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-299-4011?

The FSCG of the NSN 4820-01-299-4011 is 4820

Does the NSN 4820-01-299-4011 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-299-4011 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 4820-01-299-4011 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-299-4011 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 4820-01-299-4011 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sun, Apr 30, 1989