1221E31

View detailed technical data, stock status, and sourcing information for: 1221E31
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-183-9756

Item Name Code

00028

Assigment Date

01/01/1961 (65 years ago)

ground surface finish, 1.2480 inches nominal overall outside diameter, 0.9370 inches nominal bore diameter, 0.9920 inches nominal 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: 0.9920 inches nominal
Bore Diameter: 0.9370 inches nominal
Overall Outside Diameter: 1.2480 inches nominal
Surface Finish: ground
Bore Shape: straight
Standard Tolerance Designation: afbma std tolerances for journal bearings
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
1221E31	Inner Bearing Ring
2224025	Inner Bearing Ring
80D5	Inner Bearing Ring
RB53052F	Inner Bearing Ring
V3027	Inner Bearing Ring

FAQs

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

What is the FSCG of the NSN 3110-00-183-9756?

The FSCG of the NSN 3110-00-183-9756 is 3110

Does the NSN 3110-00-183-9756 have a Schedule B code assigned?

Yes, the Schedule B code is 8482991010

Does NSN 3110-00-183-9756 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 3110-00-183-9756 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-183-9756 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 3110-00-183-9756 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961