MM216VM4SMBR/A2031

View detailed technical data, stock status, and sourcing information for: MM216VM4SMBR/A2031
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-001-4665

Item Name Code

30214

Assigment Date

09/29/1972 (53 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.

3.1494 inches minimum and 3.1496 inches maximum bore diameter, copper alloy retainer material, 4angular contact bearings,duplex ground,1 bearing reversed stack arrangement, 4.0545 inches minimum and 4.0945 inches maximum overall width, 5.5114 inches minimum and 5.5118 inches maximum overall outside diameter

Product Characteristics

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

Overall Width: 4.0545 inches minimum and 4.0945 inches maximum
Bore Diameter: 3.1494 inches minimum and 3.1496 inches maximum
Overall Outside Diameter: 5.5114 inches minimum and 5.5118 inches maximum
Stack Arrangement: 4angular contact bearings,duplex ground,1 bearing reversed
Material: copper alloy retainer
Material: steel comp e51100 or steel comp e52100 ball
Material: steel comp e52100 inner ring
Material: steel comp e52100 outer ring
Material Document And Classification: ams 4616 assn std single material response retainer
Material Document And Classification: ams 6443 assn std 1st material response or ams 6444 assn std 2nd material response ball
Material Document And Classification: ams 6444 assn std single material response inner ring
Material Document And Classification: ams 6444 assn std single material response outer ring
Style Designator: stack

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-938-9989	No Name Available	07/01/2000

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
65951-12361-102	Stack Ball Bearing
9216UD401T	Stack Ball Bearing
MM216VM4SMBR/A2031	Stack Ball Bearing
MM216VM4SMBRQUADA2031	Stack Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-001-4665?

The FSCG of the NSN 3110-00-001-4665 is 3110

Does the NSN 3110-00-001-4665 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105068

Does NSN 3110-00-001-4665 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 3110-00-001-4665 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-001-4665 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 3110-00-001-4665 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Sep 29, 1972