1739ON

View detailed technical data, stock status, and sourcing information for: 1739ON
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-983-5930

Item Name Code

27565

Assigment Date

01/01/1962 (64 years ago)

A self-acting valve specifically designed for use in refrigeration systems for continual control of rate of flow of refrigerant. It may be actuated by a thermostatic element or self-actuated.

steam media for which designed, internal pilot valve furnished items, straight thru body style, raised face flange first end connection type, 3.750 inches nominal first end flange outside diameter

Product Characteristics

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

First End Flange Outside Diameter: 3.750 inches nominal
Body Style: straight thru
Furnished Items: internal pilot valve
Media For Which Designed: steam
First End Connection Type: raised face flange
First End Style Designator: raised
First End Flange Shape Style: round w/ bolt holes
First End Bolt Hole Quantity: 4
First End Bolt Hole Diameter: 0.625 inches nominal
First End Bolt Circle Diameter: 2.625 inches nominal
Second End Relationship With First End: identical
Face To Face Distance: 8.500 inches nominal
Flow Control Device Material: unable to decode
End Connection Quantity: 2
Outlet Pressure Range: +100.0 to 450.0 pounds per square inch
Regulation Type: manual single stage
Valve Stem Design: single seat
Valve Loading Method: spring
Remote Actuation Method: diaphragm
Maximum Inlet Pressure Rating: 600.0 pounds per square inch
Filter: not included
Temp Rating: 750.0 fahrenheit nominal
Material: unable to decode

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
17390N-LNS5 1-2IPS	Fluid Pressure Regulating Valve
1739ON	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-983-5930?

The FSCG of the NSN 4820-00-983-5930 is 4820

Does the NSN 4820-00-983-5930 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-00-983-5930 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 4820-00-983-5930 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-983-5930 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 4820-00-983-5930 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962