B7487C

View detailed technical data, stock status, and sourcing information for: B7487C
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-133-6452

Item Name Code

30214

Assigment Date

08/29/1969 (56 years ago)

A multiple assembly of more than two bearings matched for duplex mounting. Designed primarily for aircraft propeller and rotary wing aircraft rotor blade applications. See also bearing, ball, annular.

5.2496 inches minimum and 5.2500 inches maximum overall outside diameter, 4 angular contact bearings duplex ground stack arrangement, 4.2497 inches minimum and 4.2500 inches maximum bore diameter, 1.9700 inches minimum and 2.0000 inches maximum overall width, stabilized for operation from m 65 to p 165 deg f,assy relationship marking (v) on od of bearing elements,same serial no. permanently marked on all bearing elements special features

Product Characteristics

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

Overall Width: 1.9700 inches minimum and 2.0000 inches maximum
Bore Diameter: 4.2497 inches minimum and 4.2500 inches maximum
Overall Outside Diameter: 5.2496 inches minimum and 5.2500 inches maximum
Stack Arrangement: 4 angular contact bearings duplex ground
Special Features: stabilized for operation from m 65 to p 165 deg f,assy relationship marking (v) on od of bearing elements,same serial no. permanently marked on all bearing elements
Material: copper alloy retainer
Material: steel comp e52100 ball
Material: steel comp e52100 inner ring
Material: steel comp e52100 outer ring
Material Document And Classification: 540-011-449-3,97499 mfr ref single material response retainer
Material Document And Classification: fed-std-66 fed std single material response inner ring
Material Document And Classification: fed-std-66 fed std single material response ball
Material Document And Classification: fed-std-66 fed std single material response outer ring
Style Designator: stack

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
10181401	Stack Ball Bearing
540-011-449-003	Stack Ball Bearing
540-011-449-3	Stack Ball Bearing
B7487C	Stack Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-133-6452?

The FSCG of the NSN 3110-00-133-6452 is 3110

Does the NSN 3110-00-133-6452 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105068

Does NSN 3110-00-133-6452 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 3110-00-133-6452 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-133-6452 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 3110-00-133-6452 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Aug 29, 1969