MR30

View detailed technical data, stock status, and sourcing information for: MR30
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-289-6674

Item Name Code

00051

Assigment Date

01/01/1963 (63 years ago)

1.2500 inches nominal overall width, ground surface finish, pressed retainer fabrication method, 2.4375 inches nominal overall outside diameter, 1.8750 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: 1.2500 inches nominal
Bore Diameter: 1.8750 inches nominal
Overall Outside Diameter: 2.4375 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 groove in inner race
Material: steel or copper alloy retainer
Material: steel comp e4340h or steel comp e52100 or steel comp e51100 or steel comp e50100 or steel comp 1010 or steel comp 1011 or steel comp 1012 or steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 4720 or steel comp 8620 or steel comp 8720 outer ring
Material: steel comp e50100 or steel comp e51100 or steel comp e52100 roller
Material Document And Classification: 66 fed std all material responses or sae j404 assn std all material responses 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Below is a list of NSNs that have been officially superseded by this NSN: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
3110-01-031-6184	No Name Available	09/01/1981

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
001401	Needle Roller Bearing
11632147-2	Needle Roller Bearing
26585330	Needle Roller Bearing
MR-30	Needle Roller Bearing
MR30	Needle Roller Bearing
MR30SS	Needle Roller Bearing
MS51961-29	Needle Roller Bearing
SJ7335	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-289-6674?

The FSCG of the NSN 3110-00-289-6674 is 3110

Does the NSN 3110-00-289-6674 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-00-289-6674 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 3110-00-289-6674 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-289-6674 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 3110-00-289-6674 was assigned to the Federal Catalog?

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