MR-40

View detailed technical data, stock status, and sourcing information for: MR-40
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-227-3257

Item Name Code

00051

Assigment Date

04/27/1966 (60 years ago)

pressed retainer fabrication method, ground surface finish, 3.2500 inches nominal overall outside diameter, 1.7500 inches nominal overall width, 2.5000 inches nominal bore 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: 1.7500 inches nominal
Bore Diameter: 2.5000 inches nominal
Overall Outside Diameter: 3.2500 inches nominal
Surface Finish: ground
Retainer Fabrication Method: pressed
Alignment Type: rigid
Standard Tolerance Designation: afbma std tolerance for industrial needle bearings
Special Features: oil hole and oil groove in outer race,mfr std retainer
Material: steel or copper alloy retainer
Material: steel outer ring
Material: steel roller
Style Designator: non-separable, with roller retainer, hardened and ground

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-190-6610	No Name Available	08/01/1980
3110-00-965-5877	No Name Available	06/24/1970

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
10108498-2	Needle Roller Bearing
2Z489D3	Needle Roller Bearing
747899	Needle Roller Bearing
HJ405228	Needle Roller Bearing
MR-40	Needle Roller Bearing
SJ8447	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-227-3257?

The FSCG of the NSN 3110-00-227-3257 is 3110

Does the NSN 3110-00-227-3257 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-00-227-3257 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 3110-00-227-3257 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-227-3257 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 3110-00-227-3257 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Apr 27, 1966