MR18-2

View detailed technical data, stock status, and sourcing information for: MR18-2
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-839-0757

Item Name Code

00051

Assigment Date

12/19/1966 (59 years ago)

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes:ring, connecting, round.

1.6250 inches nominal overall outside diameter, 1.1250 inches nominal bore diameter, ground surface finish, 1.2500 inches nominal overall width, machined retainer fabrication method

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: 1.1250 inches nominal
Overall Outside Diameter: 1.6250 inches nominal
Surface Finish: ground
Retainer Fabrication Method: machined
Alignment Type: rigid
Standard Tolerance Designation: afbma std tolerance for airframe needle bearings
Material: steel retainer
Material: steel comp e52100 outer ring
Material: steel comp e52100 roller
Material Document And Classification: fed-std 66 fed std single material response outer ring
Material Document And Classification: fed-std 66 fed std single material response retainer
Material Document And Classification: fed-std 66 fed std single material response roller
Style Designator: non-separable, with roller retainer, hardened and ground

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
209-010-447-1	Needle Roller Bearing
HJ182620X1	Needle Roller Bearing
MR18-2	Needle Roller Bearing
MR18-8	Needle Roller Bearing
SJ7215-13	Needle Roller Bearing
SJ7215I13	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-839-0757?

The FSCG of the NSN 3110-00-839-0757 is 3110

Does the NSN 3110-00-839-0757 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-00-839-0757 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 3110-00-839-0757 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-839-0757 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 3110-00-839-0757 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Mon, Dec 19, 1966