4820-01-218-4612

Find complete technical information, availability, and procurement data for: 4820-01-218-4612
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-218-4612

Item Name Code

05488

Assigment Date

10/12/1985 (40 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

right-hand all ends thread direction, poppet flow control device, 3a all ends thread class, spring disk loading method, -40.0 fahrenheit 1st 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: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: -40.0 fahrenheit 1st response
Maximum Operating Temp: 280.0 fahrenheit 2nd response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches all ends
Opening Pressure Setting: 17.0 pounds per square inch
Material: aluminum alloy 2024 body
Media For Which Designed: air 1st response
Media For Which Designed: alcohol, ethyl 2nd response
Media For Which Designed: fuel/oil, hydrocarbon 3rd response
Media For Which Designed: helium 4th response
Media For Which Designed: hydrogen 5th response
Style Designator: straight thru w/baffle
Thread Series Designator: unjf all ends
Furnished Items And Quantity: 1 deflector cap

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
D559A-8D-17	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-218-4612?

The FSCG of the NSN 4820-01-218-4612 is 4820

Does the NSN 4820-01-218-4612 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-218-4612 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 4820-01-218-4612 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-218-4612 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 4820-01-218-4612 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Oct 12, 1985