4M98-6-2-21

View detailed technical data, stock status, and sourcing information for: 4M98-6-2-21
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-343-4877

Item Name Code

13206

Assigment Date

01/20/1974 (52 years ago)

0.3900 inches minimum and 0.3930 inches maximum body inside diameter, 0.2350 inches minimum and 0.2500 inches maximum overall length, 0.4381 inches minimum and 0.4386 inches maximum body outside diameter, 0.0300 inches minimum and 0.0350 inches maximum flange width, 0.4900 inches minimum and 0.5100 inches maximum flange outside diameter

Product Characteristics

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

Overall Length: 0.2350 inches minimum and 0.2500 inches maximum
Body Outside Diameter: 0.4381 inches minimum and 0.4386 inches maximum
Body Inside Diameter: 0.3900 inches minimum and 0.3930 inches maximum
Flange Outside Diameter: 0.4900 inches minimum and 0.5100 inches maximum
Flange Width: 0.0300 inches minimum and 0.0350 inches maximum
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Surface Finish: 125.0 microinches intermediate layer
Material: steel comp 4130 overall
Material Document And Classification: mil-s-6758 cond d mil spec single material response or mil-t-6736 mil spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Style Designator: solid, external flange one end
Specification/Standard Data: 76301-4-43 manufacturers standard

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
4M98-6-2-21	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-00-343-4877?

The FSCG of the NSN 3120-00-343-4877 is 3120

Does the NSN 3120-00-343-4877 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-00-343-4877 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 3120-00-343-4877 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-343-4877 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 3120-00-343-4877 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Jan 20, 1974