A20-55NID

View detailed technical data, stock status, and sourcing information for: A20-55NID
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-280-3665

Item Name Code

00014

Assigment Date

06/08/1988 (38 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.

5.7500 inches nominal overall width, 62.6300 inches nominal overall outside diameter, 35 mounting holes on outer race,1.3125 in. dia,on a 60.1250 in. dia bolt circle;36 mounting holes on inner race,1.3125 in. dia,on a 50.5000 in. dia bolt circle special features, 45.6500 inches nominal bore diameter, lubrication hole features provided

Product Characteristics

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

Overall Width: 5.7500 inches nominal
Bore Diameter: 45.6500 inches nominal
Overall Outside Diameter: 62.6300 inches nominal
Features Provided: lubrication hole
Special Features: 35 mounting holes on outer race,1.3125 in. dia,on a 60.1250 in. dia bolt circle;36 mounting holes on inner race,1.3125 in. dia,on a 50.5000 in. dia bolt circle

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
503-01801 ITEM 55	Annular Ball Bearing
A20-55NID	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-280-3665?

The FSCG of the NSN 3110-01-280-3665 is 3110

Does the NSN 3110-01-280-3665 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-01-280-3665 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 3110-01-280-3665 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-280-3665 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 3110-01-280-3665 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, Jun 8, 1988