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4820-00-369-7889

Find complete technical information, availability, and procurement data for: 4820-00-369-7889

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4820-00-369-7889
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-369-7889
Item Name Code
20520
Assigment Date
02/26/1969 (57 years ago)

A component consisting of two or more different items, such as resistors, telephone repeating coils and capacitors, electrically connected and designed to provide facilities for connecting one or more two-wire communications circuits to one or more four-wire communications circuits. May include band-pass filters and/or protective apparatus. For items fabricated by monolithic and/or thin film techniques, see microcircuit (as modified). See also network, impedance matching.

spring disk loading method, right-hand all ends thread direction, -65.0 fahrenheit 1st response maximum operating temp, 3a all ends thread class, poppet flow control device

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
-65.0 fahrenheit 1st response
Maximum Operating Temp
275.0 fahrenheit 2nd response
Connection Style
flareless all ends
Valve Operation Method
automatic
Connection Type
threaded external tube all ends
Mounting Position
horizontal or vertical
Maximum Operating Pressure
3000.0 pounds per square inch single response
Nominal Thread Size
0.438 inches 2nd end
Nominal Thread Size
0.562 inches 1st end
Seat Angle
12.0 degrees all ends
Material
aluminum alloy 2024 body
Material
aluminum alloy 2024 seat
Material
steel corrosion resisting flow control device
Material Document And Classification
qq-a-225/6 fed spec single material response body
Material Document And Classification
qq-a-225/6 fed spec single material response seat
Material Document And Classification
qq-s-763, class 302 fed spec single material response flow control device
Media For Which Designed
hydraulic fluid, mineral base single response
Style Designator
straight thru
Thread Series Designator
unf all ends

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Part Number Name
2R2452-7 Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-369-7889?
The FSCG of the NSN 4820-00-369-7889 is 4820
Does the NSN 4820-00-369-7889 have a Schedule B code assigned?
Yes, the Schedule B code is 8481309000
Does NSN 4820-00-369-7889 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 4820-00-369-7889 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-369-7889 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 4820-00-369-7889 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Feb 26, 1969

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