IRA4

View detailed technical data, stock status, and sourcing information for: IRA4
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-307-1407

Item Name Code

00028

Assigment Date

10/19/1973 (52 years ago)

0.2495 inches minimum and 0.2500 inches maximum bore diameter, 0.4370 inches minimum and 0.4375 inches maximum overall outside diameter, ground surface finish, 0.5260 inches minimum and 0.5360 inches maximum overall width, straight bore shape

Product Characteristics

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

Overall Width: 0.5260 inches minimum and 0.5360 inches maximum
Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Overall Outside Diameter: 0.4370 inches minimum and 0.4375 inches maximum
Surface Finish: ground
Bore Shape: straight
Material: steel overall
Style Designator: solid inner race, journal and needle

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
IRA4	Inner Bearing Ring

FAQs

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

What is the FSCG of the NSN 3110-00-307-1407?

The FSCG of the NSN 3110-00-307-1407 is 3110

Does the NSN 3110-00-307-1407 have a Schedule B code assigned?

Yes, the Schedule B code is 8482991010

Does NSN 3110-00-307-1407 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 3110-00-307-1407 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-307-1407 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 3110-00-307-1407 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Oct 19, 1973