4820-00-857-8247

Find complete technical information, availability, and procurement data for: 4820-00-857-8247
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-857-8247

Item Name Code

05487

Assigment Date

01/01/1962 (64 years ago)

A positive displacement device which utilzes the rotating motion of one or more gears, cams, vanes, or screws in an enclosure as a means of transferring a liquid from one place to another. It is designed to be driven manually or by a prime mover which is not an integral part of the pump. Excludes:aircraft engine pumps.

right-hand 1st end thread direction, flared (tube) 1st end connection style, spring disk loading method, poppet flow control device, 3a 1st end 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 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: flared (tube) 1st end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: aluminum alloy seat
Material: aluminum alloy 2024 body
Media For Which Designed: hydraulic fluid, phosphate-ester base single response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625,ty 1 mil spec single treatment response
Style Designator: straight thru
Test Data Document: 36659-668455 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Thread Series Designator: unf 1st end

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
668455	Check Valve
668455-1	Check Valve
P6-300	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-857-8247?

The FSCG of the NSN 4820-00-857-8247 is 4820

Does the NSN 4820-00-857-8247 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-857-8247 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 4820-00-857-8247 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-857-8247 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 4820-00-857-8247 was assigned to the Federal Catalog?

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