4CV643

View detailed technical data, stock status, and sourcing information for: 4CV643
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-940-7359

Item Name Code

05487

Assigment Date

12/11/1965 (60 years ago)

automatic valve operation method, flared (tube) 1st end connection style, 3a 1st end thread class, threaded external tube 1st end connection type, right-hand 1st 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 Class: 3a 1st end
Thread Direction: right-hand 1st end
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: straight thru
Thread Series Designator: unf 1st 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
4CV643	Check Valve
6846669	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-940-7359?

The FSCG of the NSN 4820-00-940-7359 is 4820

Does the NSN 4820-00-940-7359 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-940-7359 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 4820-00-940-7359 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-940-7359 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 4820-00-940-7359 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Sat, Dec 11, 1965