6125-8

View detailed technical data, stock status, and sourcing information for: 6125-8
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-159-4523

Item Name Code

20520

Assigment Date

08/09/1983 (43 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.

0.030 inches nominal aperture diameter, 3b 1st end thread class, right-hand 2nd end thread direction, 3a 2nd end thread class, right-hand 1st end 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 2nd end
Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Aperture Diameter: 0.030 inches nominal
Flow Control Device: poppet
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 2nd end
Connection Type: threaded internal boss 1st end
Mounting Position: horizontal
Thread Quantity Per Inch: 18 1st end
Nominal Thread Size: 0.562 inches 1st end
Nominal Thread Size: 0.562 inches 2nd end
Criticality Code Justification: feat
Special Features: installation of jam nut and torque to 10 inch pounds;flight safety critical
Material: aluminum alloy overall
Style Designator: straight thru
Thread Series Designator: unjs 2nd 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
6125-8	Restrictor Check Valve
A51H9221-5	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-159-4523?

The FSCG of the NSN 4820-01-159-4523 is 4820

Does the NSN 4820-01-159-4523 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-159-4523 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 4820-01-159-4523 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-159-4523 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 4820-01-159-4523 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Tue, Aug 9, 1983