4820-00-078-8933

Find complete technical information, availability, and procurement data for: 4820-00-078-8933
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-078-8933

Item Name Code

05487

Assigment Date

01/01/1963 (63 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.

spring disk loading method, right-hand all ends thread direction, plain, optional end (pipe) all ends connection style, automatic valve operation method, poppet flow control device

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: poppet
Disk Loading Method: spring
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 18 all ends
Nominal Thread Size: 0.250 inches all ends
Material: rubber butadiene-acrylonitrile class nbr flow control device
Material: steel comp 1213 seat
Material: steel comp 1213 body
Material Document And Classification: 66 fed std single material response body
Material Document And Classification: 66 fed std single material response seat
Style Designator: straight thru
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-363-2088	No Name Available	08/01/2002
4820-01-380-2531	No Name Available	08/01/2013

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
5827-01 ITEM 13	Check Valve
C400S	Check Valve
C400S10	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-078-8933?

The FSCG of the NSN 4820-00-078-8933 is 4820

Does the NSN 4820-00-078-8933 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-078-8933 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 4820-00-078-8933 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-078-8933 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 4820-00-078-8933 was assigned to the Federal Catalog?

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