3120-00-381-4181

Find complete technical information, availability, and procurement data for: 3120-00-381-4181
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-381-4181

Item Name Code

13211

Assigment Date

01/01/1963 (63 years ago)

An insulator that is essentially thin and flat, with one through hole centrally located. The general shape may vary by the addition of features such as beveled edges, indented surfaces, through hole keys, and/or peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. Excludes:items with more than one hole. See also insulator, disk; insulator, bead; insulator, bushing; and insulator, plate

0.7498 inches minimum and 0.7500 inches maximum outside diameter, rectangular cross-sectional shape style, 0.1400 inches minimum and 0.1450 inches maximum overall thickness, 0.6250 inches minimum and 0.6252 inches maximum diameter, round center hole shape style

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: 0.7498 inches minimum and 0.7500 inches maximum
Center Hole Shape Style: round
Diameter: 0.6250 inches minimum and 0.6252 inches maximum
Overall Thickness: 0.1400 inches minimum and 0.1450 inches maximum
Corner Shape: square all corners
Hardness Rating: 62.0 rockwell c minimum and 66.0 rockwell c maximum overall
Surface Finish: 8.0 microinches largest outside diameter
Material: steel comp e52100 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
210623PC3	Thrust Washer Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-381-4181?

The FSCG of the NSN 3120-00-381-4181 is 3120

Does the NSN 3120-00-381-4181 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105008

Does NSN 3120-00-381-4181 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 3120-00-381-4181 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-381-4181 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 3120-00-381-4181 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963