C3731B

View detailed technical data, stock status, and sourcing information for: C3731B
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-035-9922

Item Name Code

35224

Assigment Date

01/01/1963 (63 years ago)

An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.

4.125 inches nominal flange seat to disk end height, 0.497 inches nominal tip diameter, 1.605 inches nominal under flange height, 5.945 inches nominal overall height, 0.497 inches nominal shank diameter

Product Characteristics

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

Shank Diameter: 0.497 inches nominal
Tip Diameter: 0.497 inches nominal
Overall Height: 5.945 inches nominal
Flange Seat To Disk End Height: 4.125 inches nominal
Under Flange Height: 1.605 inches nominal
Seat Angle: 30.0 degrees nominal
Material: steel corrosion resisting
Style Designator: poppet

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
C3731B	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-00-035-9922?

The FSCG of the NSN 4820-00-035-9922 is 4820

Does the NSN 4820-00-035-9922 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-035-9922 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 4820-00-035-9922 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-035-9922 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 4820-00-035-9922 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963