TDP11-4-90P0UND

View detailed technical data, stock status, and sourcing information for: TDP11-4-90P0UND
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-446-2743

Item Name Code

05488

Assigment Date

01/01/1961 (65 years ago)

A valve with one inlet and one outlet connection with outlet flow at an angle to inlet flow. The flow is controlled by the action of a stem which lifts disks perpendicularly off the center axis of its seat. It may be inline or cartridge (manifold) design. Excludes:valve (1), y; valve, stop-check; and cock, shutoff, screw stem.

400.0 fahrenheit 1st response maximum operating temp, poppet flow control device, right-hand 2nd end thread direction, right-hand 1st end 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.

Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 400.0 fahrenheit 1st response
Maximum Operating Temp: 400.0 fahrenheit 2nd response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Features Provided: pressure tight outlet side
Adjustable Pressure Range: +61.0 to 120.0 pounds per square inch
Maximum Operating Pressure: 300.0 pounds per square inch 1st response
Maximum Operating Pressure: 300.0 pounds per square inch 2nd response
Nominal Thread Size: 1.250 inches 1st end
Nominal Thread Size: 1.250 inches 2nd end
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy seat
Material: steel stem
Media For Which Designed: oil 2nd response
Media For Which Designed: steam 1st response
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-625-8741	No Name Available	12/01/2008

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
3240431	Safety Relief Valve
81125S41-21670ALT3PC13	Safety Relief Valve
TDP11-4-90P0UND	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-446-2743?

The FSCG of the NSN 4820-00-446-2743 is 4820

Does the NSN 4820-00-446-2743 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-446-2743 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 4820-00-446-2743 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-446-2743 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 4820-00-446-2743 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961