4820-01-171-9440

Find complete technical information, availability, and procurement data for: 4820-01-171-9440
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-171-9440

Item Name Code

20520

Assigment Date

02/15/1984 (42 years ago)

An item designed to suppress undesired (interfering) frequencies and have a minimal effect on the desired frequencies when inserted in an electrical power circuit. Excludes:items which consist of a single capacitor, inductor, resistor, or devices consisting of only two or more circuit elements of the same basic name. Excludes:filter, low pass and suppressor, ignition interference. For items designed to be inserted in a line which is primarily intended to carry high frequency waves modulated with signals, such as antenna lead-in, see filter, band suppression and filter, band pass. See also limiter, electrical noise.

poppet flow control device, 275.0 fahrenheit single response maximum operating temp, external seat for gasket seal (boss) all ends connection style, 3a all ends thread class, right-hand all ends thread direction

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
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded external boss all ends
Mounting Position: horizontal
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 1.0625 inches all ends
Special Features: hydraulic fluid media
Material: steel comp 440c flow control device
Material: steel comp 630 body
Material Document And Classification: ams 5643 assn std single material response body
Material Document And Classification: qq-s-763 cl 440c fed spec single material response flow control device
Style Designator: straight thru
Thread Series Designator: unj all ends

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:

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9R3224	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-171-9440?

The FSCG of the NSN 4820-01-171-9440 is 4820

Does the NSN 4820-01-171-9440 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-171-9440 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 4820-01-171-9440 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-171-9440 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 4820-01-171-9440 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, Feb 15, 1984