4820-00-618-7820

Find complete technical information, availability, and procurement data for: 4820-00-618-7820
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-618-7820

Item Name Code

05488

Assigment Date

01/01/1963 (63 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 1st end thread direction, 2.0 cubic feet per minute valve discharge flow rate, spring disk loading method, poppet flow control device, 2a 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: 2a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 2.0 cubic feet per minute
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Thread Quantity Per Inch: 16 1st end
Adjustable Pressure Range: +15.0 to 17.0 pounds per square inch
Maximum Operating Pressure: 17.0 pounds per square inch single response
Nominal Thread Size: 1.375 inches 1st end
Material: steel corrosion resisting flow control device
Media For Which Designed: gas, inert single response
Surface Treatment: anodize
Style Designator: straight thru
Thread Series Designator: un 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
100-923-1	Safety Relief Valve
651346	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-618-7820?

The FSCG of the NSN 4820-00-618-7820 is 4820

Does the NSN 4820-00-618-7820 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-618-7820 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 4820-00-618-7820 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-618-7820 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 4820-00-618-7820 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963