2271605

View detailed technical data, stock status, and sourcing information for: 2271605
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-827-7493

Item Name Code

05487

Assigment Date

08/30/1967 (58 years ago)

right-hand 1st end thread direction, poppet flow control device, 3a 1st end thread class, right-hand 2nd end thread direction, 3b 2nd 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: 3a 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 180.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: gasket seal (boss) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal boss 2nd end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 20 2nd end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 600.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 2nd end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: aluminum alloy 2024 body
Material: aluminum alloy 2024 flow control device
Material: aluminum alloy 2024 seat
Material Document And Classification: qq-a-200/3 fed spec single material response overall
Media For Which Designed: air 1st response
Media For Which Designed: alcohol, ethyl 2nd response
Media For Which Designed: carbon dioxide 3rd response
Media For Which Designed: ethylene glycol 4th response
Media For Which Designed: fuel/oil, hydrocarbon 5th response
Media For Which Designed: nitrogen, gaseous single response
Style Designator: straight thru
Thread Series Designator: unf 2nd end
Thread Series Designator: unjf 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
2271605	Check Valve
869A4TB	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-827-7493?

The FSCG of the NSN 4820-00-827-7493 is 4820

Does the NSN 4820-00-827-7493 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-827-7493 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 4820-00-827-7493 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-827-7493 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 4820-00-827-7493 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Aug 30, 1967