485-4D1-3

View detailed technical data, stock status, and sourcing information for: 485-4D1-3
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-064-2817

Item Name Code

05487

Assigment Date

08/20/1978 (48 years ago)

3a 1st end thread class, right-hand 1st end thread direction, spring disk loading method, right-hand 2nd end thread direction, 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 Class: 3a 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 200.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 2nd end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 2nd end
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 37.0 degrees 1st end
Material: aluminum alloy seat
Material: aluminum alloy body
Material: rubber butadiene-acrylonitrile class nbr packing
Material: steel comp 304 flow control device
Material Document And Classification: qq-s-763,class304 fed spec single material response flow control device
Media For Which Designed: air single response
Style Designator: straight thru
Thread Series Designator: npt 2nd end
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
321881	Check Valve
321881P4	Check Valve
485-4D1-3	Check Valve
48504D1-3	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-064-2817?

The FSCG of the NSN 4820-01-064-2817 is 4820

Does the NSN 4820-01-064-2817 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-064-2817 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 4820-01-064-2817 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-064-2817 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 4820-01-064-2817 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sun, Aug 20, 1978