L81400-20MMK

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-059-1172

Item Name Code

05487

Assigment Date

04/06/1978 (48 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.

poppet flow control device, 400.0 fahrenheit single response maximum operating temp, automatic valve operation method, unthreaded internal tube all ends connection type, plain (tube) all ends connection style

Product Characteristics

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

Flow Control Device: poppet
Maximum Operating Temp: 400.0 fahrenheit single response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 1.250 inches all ends
Material: aluminum alloy 2024 flow control device
Material: aluminum alloy 6061 body
Material: aluminum alloy 6061 seat
Material Document And Classification: qq-a-200/3, alloy 2024, t4 fed spec single material response flow control device
Material Document And Classification: qq-a-225/8, alloy 6061, t651 fed spec single material response body
Material Document And Classification: qq-a-225/8, alloy 6061, t651 fed spec single material response seat
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Style Designator: straight thru

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
GV500TC	Check Valve
GV500TC20MMK	Check Valve
L81400-20MMK	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-059-1172?

The FSCG of the NSN 4820-01-059-1172 is 4820

Does the NSN 4820-01-059-1172 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-059-1172 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 4820-01-059-1172 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-059-1172 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 4820-01-059-1172 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Apr 6, 1978