4820-00-959-5620

Find complete technical information, availability, and procurement data for: 4820-00-959-5620
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-959-5620

Item Name Code

05487

Assigment Date

01/01/1962 (64 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.

right-hand all ends thread direction, spring disk loading method, 250.0 fahrenheit single response maximum operating temp, poppet flow control device, 3a all ends thread class

Product Characteristics

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

Thread Class: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
End Item Identification: grumman aircraft,model a10
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 5000.0 pounds per square inch single response
Nominal Thread Size: 1.312 inches all ends
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 1.000 inches 1st end
Material: steel body
Material: steel comp 440c flow control device
Material: steel seat
Material Document And Classification: fed-std-66, aisi 440/sae 51440c fed std single material response flow control device
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru
Thread Series Designator: un all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-006-6189	No Name Available	08/01/1992
4820-00-580-8686	No Name Available	11/27/1968
4820-00-815-8127	No Name Available	11/06/1968
4820-00-878-9785	No Name Available	11/27/1968

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
3CM15-01-B-16F-16F-3	Check Valve
3CM15-16T3S	Check Valve
458-16S2-6	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-959-5620?

The FSCG of the NSN 4820-00-959-5620 is 4820

Does the NSN 4820-00-959-5620 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-959-5620 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 4820-00-959-5620 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-959-5620 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 4820-00-959-5620 was assigned to the Federal Catalog?

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