28139-26

View detailed technical data, stock status, and sourcing information for: 28139-26
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-415-1000

Item Name Code

20520

Assigment Date

06/20/1995 (31 years ago)

A manually or power operated valve having three or more ports. The direction of the flow through the various ports is controlled by either one or more reciprocating slide(s) or spool(s) with recess areas which mate with ports in an integral or replaceable ported sleeve, or one or more poppet(s). It is designed to change the direction of fluid flow from one valve port to another. An off (no flow) position is not a flow pattern. The valve is designed to actuate various components of a fluid system. A power operated valve may have a manual override. For items which stop, start, or change the flow of fluid, see: valve, solenoid. Excludes:valve, plug. See also servovalve, hydraulic; body section, working, linear directional control valve; and valve assembly.

plain (pipe) 1st end connection style, plain (pipe) 2nd end connection style, automatic valve operation method, right-hand 1st end thread direction, right-hand 2nd end thread direction

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
Connection Style: plain (pipe) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded external pipe 2nd end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.812 inches 1st end
Nominal Thread Size: 0.875 inches 2nd end
Nominal Outside Diameter: 0.812 inches 1st end
Special Features: forklift
Media For Which Designed: oil, hydraulic single response
Surface Treatment: zinc and phosphate
Style Designator: straight thru
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd end

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
2776723	Restrictor Check Valve
28139-26	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-415-1000?

The FSCG of the NSN 4820-01-415-1000 is 4820

Does NSN 4820-01-415-1000 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 4820-01-415-1000 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-415-1000 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 4820-01-415-1000 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Tue, Jun 20, 1995