657978

View detailed technical data, stock status, and sourcing information for: 657978
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-391-2163

Item Name Code

00041

Assigment Date

06/08/1994 (32 years ago)

A bracket of various shapes (other than angle), designed to be attached to a supporting surface for the specific purpose of positioning, aligning and/or supporting another item. Excludes:brace (as modified); bracket, angle; and bracket, double angle. See also bracket (1), electrical connector; bracket, fire extinguisher; bracket, solenoid; bracket, track, sliding door; and retainer (as modified).

1.4995 inches minimum and 1.5000 inches maximum overall outside diameter, 0.2450 inches minimum and 0.2500 inches maximum outer ring width, 0.2760 inches minimum and 0.2810 inches maximum inner ring width, 2 seal quantity, 1.0620 inches minimum and 1.0625 inches maximum bore diameter

Product Characteristics

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

Bore Diameter: 1.0620 inches minimum and 1.0625 inches maximum
Overall Outside Diameter: 1.4995 inches minimum and 1.5000 inches maximum
Outer Ring Width: 0.2450 inches minimum and 0.2500 inches maximum
Inner Ring Width: 0.2760 inches minimum and 0.2810 inches maximum
Seal Quantity: 2
Bearing Seal Type: contact
Special Features: 0.0008 to 0.0015 radial play
Material: rubber synthetic seal
Material: steel comp 440c ball
Material: steel comp e52100 inner ring
Material: steel comp e52100 outer ring
Style Designator: single row inner ring extended both sides

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
657978	Airframe Ball Bearing
T205-803	Airframe Ball Bearing
WRI541QQ5EEFD604FA3P815LY308KB	Airframe Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-391-2163?

The FSCG of the NSN 3110-01-391-2163 is 3110

Does the NSN 3110-01-391-2163 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105068

Does NSN 3110-01-391-2163 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 3110-01-391-2163 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-391-2163 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 3110-01-391-2163 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Jun 8, 1994