D559T1-1M-2

View detailed technical data, stock status, and sourcing information for: D559T1-1M-2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-265-0413

Item Name Code

05488

Assigment Date

10/08/1987 (38 years ago)

A valve designed specifically so the diaphragm seals the flow stream from the valve operating mechanism. The flow is controlled by the lifting of the diaphragm from or compressing it against an integral seat. For packless diaphragm valves which utilize a diaphragm as packing and a disk to control the flow, see valve, y.

250.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, automatic valve operation method, plain (pipe) all ends connection style, poppet flow control device

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: poppet
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Adjustable Pressure Range: +0.5 to 2.4 pounds per square inch
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches all ends
Opening Pressure Setting: 2.0 pounds per square inch
Material: rubber butadiene-acrylonitrile class nbr packing
Material: steel corrosion resisting body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: ammonia, gaseous 3rd response
Media For Which Designed: hydrogen 5th response
Media For Which Designed: refrigerant 12 4th response
Style Designator: straight thru
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
D559T1-1M-2	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-265-0413?

The FSCG of the NSN 4820-01-265-0413 is 4820

Does the NSN 4820-01-265-0413 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-265-0413 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 4820-01-265-0413 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-265-0413 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 4820-01-265-0413 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Oct 8, 1987