3120-00-678-2208

Find complete technical information, availability, and procurement data for: 3120-00-678-2208
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-678-2208

Item Name Code

13204

Assigment Date

01/01/1963 (63 years ago)

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

5.0625 inches nominal overall length, 10.4900 inches minimum and 10.5000 inches maximum extension outside diameter, chamfered outside right corner corner shape, 13.2480 inches minimum and 13.2500 inches maximum spherical body diameter, 6.5160 inches minimum and 6.5180 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: 5.0625 inches nominal
Body Inside Diameter: 6.5160 inches minimum and 6.5180 inches maximum
Extension Outside Diameter: 10.4900 inches minimum and 10.5000 inches maximum
Spherical Body Diameter: 13.2480 inches minimum and 13.2500 inches maximum
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 Finish: 32.0 microinches inside diameter surface of body
Material: steel comp 1020 outer layer
Material: tin alloy uns l13840 inner layer
Material Document And Classification: qq-s-635 fed spec single material response outer layer
Material Document And Classification: qq-t-390 fed spec single material response inner layer
Style Designator: segmented

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
251L186 PIECE 1	Spherical Plain Bearing
335D155-1	Spherical Plain Bearing
335D155PC1	Spherical Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-678-2208?

The FSCG of the NSN 3120-00-678-2208 is 3120

Does the NSN 3120-00-678-2208 have a Schedule B code assigned?

Yes, the Schedule B code is 8482300040

Does NSN 3120-00-678-2208 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 3120-00-678-2208 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-00-678-2208 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 3120-00-678-2208 was assigned to the Federal Catalog?

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