5159T-12T-20

View detailed technical data, stock status, and sourcing information for: 5159T-12T-20
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-259-8778

Item Name Code

05488

Assigment Date

07/22/1987 (39 years ago)

A valve having two or more ports with valve stem or pilot needle in a normally open or closed position. It is specifically designed to stop or start or change the flow of fluid by means of the magnetic action of an electric coil on a moveable core or plunger. The valve may be equipped with a manual opening or closing device. For items with three or more ports that utilize a reciprocating slide with recess areas which mate with ports in an integral or replaceable ported sleeve, see valve (1), linear, directional control. It may be inline or cartridge (manifold) design. Excludes:valve (1), butterfly.

poppet flow control device, 3a all ends thread class, flared (tube) all ends connection style, right-hand all ends thread direction, 275.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Thread Class: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Thread Quantity Per Inch: 12 all ends
Adjustable Pressure Range: +16.0 to 25.0 pounds per square inch
Maximum Operating Pressure: 2500.0 pounds per square inch single response
Nominal Thread Size: 1.062 inches all ends
Seat Angle: 37.0 degrees all ends
Material: steel corrosion resisting body
Media For Which Designed: air 1st response
Media For Which Designed: ethylene glycol 2nd response
Media For Which Designed: hydraulic fluid, mineral base 3rd response
Style Designator: straight thru
Thread Series Designator: un 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
5159T-12T-20	Safety Relief Valve
5159T12T20	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-259-8778?

The FSCG of the NSN 4820-01-259-8778 is 4820

Does the NSN 4820-01-259-8778 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-259-8778 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 4820-01-259-8778 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-259-8778 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 4820-01-259-8778 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Jul 22, 1987