502-3 Needle Roller Bearing

Comprehensive specifications and application details for: 502-3 Needle Roller Bearing.

Summary

Explore detailed summary information for bearing: 502-3. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 502-3
Federal Supply Classification: 3110 Unmounted Antifriction Bearings
(NSN) National Stock Number: 3110-00-227-2821
Item Name Code: 00051
Federal Item Identification Guide: A044A0
Assigment Date: 01/01/1963

A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

0.3125 inches nominal inner ring width, rigid alignment type, grease lubrication material, 0.1900 inches nominal bore diameter, mil-g-3278 mil spec single material response lubrication material document and classification

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-00-227-2821 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: rigid
Bore Diameter: 0.1900 inches nominal
Inner Ring Width: 0.3125 inches nominal
Lubrication Material Document And Classification: mil-g-3278 mil spec single material response
Lubrication Material: grease
Outer Ring Width: 0.2188 inches nominal
Overall Outside Diameter: 0.7500 inches nominal
Material Document And Classification: mil-s-7420 mil spec 1st material response or 66 fed std 1st material response or mil-s-8690 mil spec 2nd material response or mil-s-7493 mil spec 3rd material response or qq-s-624 fed spec 3rd material response or qq-s-633 fed spec 3rd material response or 66 fed std 4th material response or 66 fed std 5th material response overall
Material: steel comp e52100 or steel comp 8620 or steel or steel comp e50100 or steel comp e51100 overall
Retainer Fabrication Method: pressed
Special Features: oil hole and groove in inner race
Standard Tolerance Designation: afbma std tolerance for industrial needle bearings
Style Designator: cam roller, hardened and ground, non-separable
Surface Finish: ground
Surface Treatment: cadmium end plate
Surface Treatment: chromium outer ring outside diameter

Replaces

The NSN 3110-00-227-2821 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3110-00-554-3942	No Name Available	06/10/1971

Frequently Asked Questions

Find quick answers to common questions about bearing: 502-3. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-00-227-2821?: The FSCG of the NSN 3110-00-227-2821 is 3110

Does the NSN 3110-00-227-2821 have a Schedule B code assigned?: Yes, the Schedule B code is 8482400000

Does NSN 3110-00-227-2821 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 3110-00-227-2821 contain precious materials?: Precious metal content is unknown

Does NSN 3110-00-227-2821 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.