3120-00-238-8708

Find complete technical information, availability, and procurement data for: 3120-00-238-8708
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-238-8708

Item Name Code

13211

Assigment Date

11/09/1970 (55 years ago)

A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also resistor, vaiable (as modified).

rectangular cross-sectional shape style, round center hole shape style, 0.2500 inches minimum and 0.2520 inches maximum diameter, 0.0320 inches minimum and 0.0340 inches maximum overall thickness, 0.3700 inches minimum and 0.3800 inches maximum outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Cross-Sectional Shape Style: rectangular
Outside Diameter: 0.3700 inches minimum and 0.3800 inches maximum
Center Hole Shape Style: round
Diameter: 0.2500 inches minimum and 0.2520 inches maximum
Overall Thickness: 0.0320 inches minimum and 0.0340 inches maximum
Corner Shape: square all corners
Surface Finish: 16.0 microinches right side
Surface Finish: 16.0 microinches left side
Surface Finish: 63.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches largest outside diameter
Material: steel comp 303 overall
Material Document And Classification: qq-s-764,cond a fed spec single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-f-14072,fin. no. e300,ty 2 mil spec single treatment response overall
Style Designator: round

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
221-05-103-2	Thrust Washer Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-238-8708?

The FSCG of the NSN 3120-00-238-8708 is 3120

Does the NSN 3120-00-238-8708 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105008

Does NSN 3120-00-238-8708 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 3120-00-238-8708 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-238-8708 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 3120-00-238-8708 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Nov 9, 1970