21D323

View detailed technical data, stock status, and sourcing information for: 21D323
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-554-0012

Item Name Code

00014

Assigment Date

01/01/1963 (63 years ago)

3.3443 inches minimum and 3.3457 inches maximum bore diameter, 0.9823 inches minimum and 0.9843 inches maximum overall width, 5.9048 inches minimum and 5.9065 inches maximum overall outside diameter, ground surface finish, machined retainer fabrication method

Product Characteristics

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

Overall Width: 0.9823 inches minimum and 0.9843 inches maximum
Bore Diameter: 3.3443 inches minimum and 3.3457 inches maximum
Overall Outside Diameter: 5.9048 inches minimum and 5.9065 inches maximum
Surface Finish: ground
Retainer Fabrication Method: machined
Load Direction: radial
Bore Shape: straight
Internal Clearance: 0.0023 inches minimum radial and 0.0030 inches maximum radial
Special Features: split inner ring,rings to be parco-lubrized all over,except ball groves,and outer ring bore
Material: copper alloy retainer
Material: steel ball
Material: steel inner ring
Material: steel outer ring
Style Designator: 4 point ball contact, split inner ring, separable

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-198-2276	No Name Available	04/27/1970
2810-00-572-9143	No Name Available	08/01/1969

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
21D323	Annular Ball Bearing
450558	Annular Ball Bearing
9217-0-9	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-554-0012?

The FSCG of the NSN 3110-00-554-0012 is 3110

Does the NSN 3110-00-554-0012 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-554-0012 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 3110-00-554-0012 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-554-0012 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 3110-00-554-0012 was assigned to the Federal Catalog?

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