18CVS

View detailed technical data, stock status, and sourcing information for: 18CVS
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-249-1322

Item Name Code

05487

Assigment Date

02/06/1987 (39 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

250.0 fahrenheit 2nd response maximum operating temp, disk flow control device, -30.0 fahrenheit 1st response maximum operating temp, spring disk loading method, right-hand all ends 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 all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: -30.0 fahrenheit 1st response
Maximum Operating Temp: 250.0 fahrenheit 2nd response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches all ends
Material: copper alloy overall
Media For Which Designed: air single 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
18CVS	Check Valve
3287	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-249-1322?

The FSCG of the NSN 4820-01-249-1322 is 4820

Does the NSN 4820-01-249-1322 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-249-1322 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 4820-01-249-1322 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-249-1322 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 4820-01-249-1322 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Feb 6, 1987