3165499

View detailed technical data, stock status, and sourcing information for: 3165499
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-279-0235

Item Name Code

27565

Assigment Date

05/12/1988 (38 years ago)

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes:shaft(1), straight; and axle(1), straight.

threaded internal pipe first end connection type, unable to decode first end thread size and series/type designator, acetylene and gas, noncorrosive media for which designed, plain first end style designator, straight thru body style

Product Characteristics

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

Body Style: straight thru
Media For Which Designed: acetylene and gas, noncorrosive
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Thread Size And Series/Type Designator: unable to decode
First End Thread Direction: right-hand
Second End Relationship With First End: identical
Flow Control Device: diaphragm
End Connection Quantity: 2
Outlet Pressure Range: +2.0 to 125.0 pounds per square inch
Regulation Type: automatic single stage
Manual Control Method: screw
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 400.0 kilograms per square centimeter
Filter: not included
Special Features: slotted asjusting screw
Material: unable to decode

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-013-1015	No Name Available	02/08/2025

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
11-002-081	Fluid Pressure Regulating Valve
11-002-081-W/1095-05	Fluid Pressure Regulating Valve
3165499	Fluid Pressure Regulating Valve
R17-601-RNLA	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-01-279-0235?

The FSCG of the NSN 4820-01-279-0235 is 4820

Does the NSN 4820-01-279-0235 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-279-0235 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-279-0235 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-279-0235 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 4820-01-279-0235 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, May 12, 1988