L81400-24FNN

View detailed technical data, stock status, and sourcing information for: L81400-24FNN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-378-8453

Item Name Code

05487

Assigment Date

03/21/1974 (52 years ago)

poppet flow control device, 400.0 fahrenheit single response maximum operating temp, weight disk loading method, 4 1st end bolt hole quantity, 2.375 inches 1st end nominal width

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
Disk Loading Method: weight
Bolt Hole Quantity: 4 1st end
Maximum Operating Temp: 400.0 fahrenheit single response
Nominal Width: 2.375 inches 1st end
Nominal Length: 2.375 inches 1st end
Valve Operation Method: automatic
Flange Shape: rectangular with holes 1st end
Connection Type: flange 1st end
Mounting Position: horizontal
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Thickness: 0.300 inches 1st end
Bolt Hole Nominal Diameter: 0.250 inches 1st end
Center To Center Nominal Distance Between Bolt Holes Along Length: 1.812 inches 1st end
Center To Center Nominal Distance Between Bolt Holes Along Width: 1.812 inches 1st end
Flange Face Design: plain 1st end
Material: aluminum alloy 2024 or rubber 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 1st material response or rubber flourocarbon synthetic/viton/mil-r-25897,type1,class 1 mil spec 2nd material response flow control device
Material Document And Classification: qq-a-225/8,aaloy 6061,t651 fed spec single material response seat
Material Document And Classification: qq-a-225/8,alloy 6061,t651 fed spec single material response body
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625,ty 2 mil spec single treatment 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
GV500TC24FNN	Check Valve
L81400-24FN	Check Valve
L81400-24FNN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-378-8453?

The FSCG of the NSN 4820-00-378-8453 is 4820

Does the NSN 4820-00-378-8453 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-378-8453 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 4820-00-378-8453 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-378-8453 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 4820-00-378-8453 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Thu, Mar 21, 1974