189 3-4INMPT3300PSI

View detailed technical data, stock status, and sourcing information for: 189 3-4INMPT3300PSI
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-810-2030

Item Name Code

05488

Assigment Date

03/27/1968 (58 years ago)

300.0 fahrenheit single response maximum operating temp, disk flow control device, 0.750 inches all ends nominal pipe size accommodated, right-hand all ends thread direction, spring disk loading method

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: 0.750 inches all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 300.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe all ends
Features Provided: valve stem lock shield and pressure tight outlet side
Maximum Operating Pressure: 5000.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches all ends
Opening Pressure Setting: 3300.0 pounds per square inch
Material: copper alloy body
Material: plastic flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Media For Which Designed: air 1st response
Media For Which Designed: gas, natural 2nd response
Surface Treatment: passivate
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
189 3-4INMPT3300PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-810-2030?

The FSCG of the NSN 4820-00-810-2030 is 4820

Does the NSN 4820-00-810-2030 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-810-2030 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 4820-00-810-2030 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-810-2030 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 4820-00-810-2030 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Mar 27, 1968