2640-640PC4

View detailed technical data, stock status, and sourcing information for: 2640-640PC4
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-987-7940

Item Name Code

32559

Assigment Date

01/01/1962 (64 years ago)

An item usually metallic, threaded or unthreaded, used for securing to or positioning into a mating part. It is designed to be used in a globe, relief, regulator valve and the like as a means of controlling the flow of liquids or gases in a given system. One end may have an integral disk or be designed to accommodate a metallic or nonmetallic disk. The other end is designed for a handwheel, lever, spring, diaphragm and the like for nonpowered operation or to accommodate a gear, solenoid, air motor and the like for powered operation. The handwheel and/or disk may be furnished with the item. Excludes:stem, faucet; and stem, needle valve.

2 port quantity, straight port configuration, 1.875 inches nominal spherical diameter, 1 stem accommodation quantity, 0.625 inches nominal port diameter

Product Characteristics

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

Spherical Diameter: 1.875 inches nominal
Port Quantity: 2
Port Diameter: 0.625 inches nominal
Stem Accommodation Quantity: 1
Port Configuration: straight
Material: nickel alloy
Material Document And Classification: qq-n-281,cl a fed spec single material response

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
2640-240PC6	Ported Valve Ball
2640-636X1PC3	Ported Valve Ball
2640-640PC4	Ported Valve Ball

FAQs

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

What is the FSCG of the NSN 4820-00-987-7940?

The FSCG of the NSN 4820-00-987-7940 is 4820

Does the NSN 4820-00-987-7940 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-987-7940 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 4820-00-987-7940 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-987-7940 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 4820-00-987-7940 was assigned to the Federal Catalog?

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