CS2053978

View detailed technical data, stock status, and sourcing information for: CS2053978
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-205-3978

Item Name Code

13205

Assigment Date

04/04/1973 (53 years ago)

4.5000 inches nominal overall length, 0.5520 inches minimum and 0.5620 inches maximum right internal flange width, 1.2812 inches minimum and 1.2969 inches maximum right internal flange hole diameter, 2.2460 inches minimum and 2.2470 inches maximum body outside diameter, 1.8750 inches minimum and 1.8760 inches maximum body inside 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: 4.5000 inches nominal
Body Outside Diameter: 2.2460 inches minimum and 2.2470 inches maximum
Body Inside Diameter: 1.8750 inches minimum and 1.8760 inches maximum
Right Internal Flange Hole Diameter: 1.2812 inches minimum and 1.2969 inches maximum
Right Internal Flange Width: 0.5520 inches minimum and 0.5620 inches maximum
Lubricant Accommodation Style: grooved circular
Corner Shape: chamfered outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Surface Groove Location And Quantity: 1 internal
Keyway Dimension: 0.3125 inches minimum and 0.1770 inches maximum internal keyway depth
Keyway Dimension: 0.3125 inches nominal internal keyway width
Keyway Dimension: 0.5520 inches minimum and 0.5620 inches maximum internal keyway length
Material: nickel alloy k-500 overall
Style Designator: solid, plain, no outside flanges, internal flange one 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
724A0007J028A	Sleeve Bearing
CS2053978	Sleeve Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-205-3978?

The FSCG of the NSN 3120-00-205-3978 is 3120

Does the NSN 3120-00-205-3978 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997090

Does NSN 3120-00-205-3978 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 3120-00-205-3978 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-205-3978 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 3120-00-205-3978 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Apr 4, 1973