906J389-21

View detailed technical data, stock status, and sourcing information for: 906J389-21
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-549-4263

Item Name Code

13205

Assigment Date

01/01/1963 (63 years ago)

4.4375 inches nominal overall length, 7.0000 inches minimum and 7.0020 inches maximum body inside diameter, 9.9980 inches minimum and 9.9990 inches maximum body outside diameter, 32.0 microinches inside diameter surface of body surface finish, square all corners corner shape

Product Characteristics

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

Overall Length: 4.4375 inches nominal
Body Outside Diameter: 9.9980 inches minimum and 9.9990 inches maximum
Body Inside Diameter: 7.0000 inches minimum and 7.0020 inches maximum
Corner Shape: square all corners
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body
Material: steel outer layer
Material: tin alloy uns l13890 inner layer
Material Document And Classification: mil-s-890,cl bs mil spec single material response outer layer
Material Document And Classification: qq-t-390 fed spec single material response inner layer
Style Designator: segmented, plain, no outside flanges

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2825-00-778-7837	No Name Available	05/20/1967

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
906J389-19	Sleeve Bearing
906J389-21	Sleeve Bearing
906J389PC19	Sleeve Bearing
906J389PC21	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-549-4263?

The FSCG of the NSN 3120-00-549-4263 is 3120

Does the NSN 3120-00-549-4263 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-549-4263 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 3120-00-549-4263 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-549-4263 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 3120-00-549-4263 was assigned to the Federal Catalog?

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