1907R4

View detailed technical data, stock status, and sourcing information for: 1907R4
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-405-4639

Item Name Code

00014

Assigment Date

04/14/1971 (55 years ago)

ground surface finish, 1.3780 inches nominal bore diameter, 2.1654 inches nominal overall outside diameter, 0.3937 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: 0.3937 inches nominal
Bore Diameter: 1.3780 inches nominal
Overall Outside Diameter: 2.1654 inches nominal
Surface Finish: ground
Retainer Fabrication Method: machined
Load Direction: angular
Bore Shape: straight
Internal Clearance: 0.0005 inches minimum radial and 0.0008 inches maximum radial
Standard Tolerance Designation: abec no.3
Contact Angle: 12.0 degrees nominal
Special Features: stabilized for operation at m65 to p275 deg f,c scale 58 min rockwell hardness balls,inner and outer rings,surface finish id inner ring and od outer ring 16 microinches aa,raceways 8 microinches aa,inner ring od 20 microinches aa,id outer ring 125 microinches aa,ring faces 32 microinches aa,retainer 63 microinches aa
Material: copper alloy 864 retainer
Material: steel comp e51100 ball
Material: steel comp e52100 inner ring
Material: steel comp e52100 outer ring
Material Document And Classification: astm b147,81346 assn std single material response retainer
Material Document And Classification: fed-std-66 fed std single material response inner ring
Material Document And Classification: fed-std-66 fed std single material response ball
Material Document And Classification: fed-std-66 fed std single material response outer ring
Style Designator: counterbored outer ring, non-separable
Test Data Document: "81349-mil-i-6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.). and 81349-mil-i-6866 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Replaces National Stock Numbers

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

NSN	Name	Date
3110-01-457-5991	No Name Available	08/01/1999

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
1907R4	Annular Ball Bearing
2M9307WIMBRE9076	Annular Ball Bearing
59636	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-405-4639?

The FSCG of the NSN 3110-00-405-4639 is 3110

Does the NSN 3110-00-405-4639 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-405-4639 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 3110-00-405-4639 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-405-4639 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 3110-00-405-4639 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Apr 14, 1971