4820-00-794-4991

Find complete technical information, availability, and procurement data for: 4820-00-794-4991
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-794-4991

Item Name Code

05486

Assigment Date

01/01/1962 (64 years ago)

right-hand 1st end thread direction, manual valve operation method, gasket seal (boss) 1st end connection style, 3b 1st end thread class, 150.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: gasket seal (boss) 1st end
Valve Operation Method: manual
Connection Type: threaded internal boss 1st end
Thread Quantity Per Inch: 16 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 1st end
Material: rubber butadiene-acrylonitrile class nbr packing
Material: rubber butadiene-acrylonitrile class nbr seat
Material: steel comp 303 body
Material: steel comp 303 stem
Media For Which Designed: hydraulic fluid, petroleum base single response
Surface Treatment: passivate
Style Designator: straight thru
Thread Series Designator: unjf 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-675-0824	No Name Available	02/14/1966

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
3-758-1-9	Stop-Check Valve
3-758-51-9	Stop-Check Valve
668391	Stop-Check Valve
668391-3	Stop-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-794-4991?

The FSCG of the NSN 4820-00-794-4991 is 4820

Does the NSN 4820-00-794-4991 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-794-4991 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 4820-00-794-4991 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-794-4991 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 4820-00-794-4991 was assigned to the Federal Catalog?

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