NA4840

View detailed technical data, stock status, and sourcing information for: NA4840
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-282-7552

Item Name Code

00051

Assigment Date

07/21/1988 (38 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

200.0 millimeters nominal bore diameter, 50.0 millimeters nominal overall width, ground surface finish, 250.0 millimeters nominal overall outside diameter, pressed 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: 50.0 millimeters nominal
Bore Diameter: 200.0 millimeters nominal
Overall Outside Diameter: 250.0 millimeters nominal
Surface Finish: ground
Retainer Fabrication Method: pressed
Alignment Type: rigid
Standard Tolerance Designation: rbec no.1
Special Features: oil hole and groove in outer ring
Lubrication Material: lubricant
Material: steel comp 1018 retainer
Material: steel comp e52100 inner ring
Material: steel comp e52100 outer ring
Material: steel comp e52100 roller
Material Document And Classification: astm a576 assn std single material response retainer
Style Designator: separable inner race, 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
2907772-2	Needle Roller Bearing
NA4840	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-282-7552?

The FSCG of the NSN 3110-01-282-7552 is 3110

Does the NSN 3110-01-282-7552 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-01-282-7552 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 3110-01-282-7552 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-282-7552 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 3110-01-282-7552 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Jul 21, 1988