CF014520

View detailed technical data, stock status, and sourcing information for: CF014520
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-341-4218

Item Name Code

10958

Assigment Date

06/28/1991 (35 years ago)

A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude valve, vacuum breaking.

0.880 inches nominal first end outside diameter tube accommodated, straight thru body style, plain first end style designator, 2a first end thread class, threaded external tube first end connection type

Product Characteristics

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

Body Style: straight thru
First End Connection Type: threaded external tube
First End Style Designator: plain
First End Outside Diameter Tube Accommodated: 0.880 inches nominal
First End Thread Class: 2a
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded external tube
End Connection Quantity: 2
First End Thread Series Designator: unf
First End Nominal Thread Size: 0.562 inches
Second End Nominal Thread Size: 0.438 inches
Material: aluminum alloy body

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
CF014520	Gaseou Pressure Equalizing Valve

FAQs

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

What is the FSCG of the NSN 4820-01-341-4218?

The FSCG of the NSN 4820-01-341-4218 is 4820

Does the NSN 4820-01-341-4218 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-01-341-4218 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 4820-01-341-4218 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-341-4218 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 4820-01-341-4218 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, Jun 28, 1991