21D7 Annular Ball Bearing

Comprehensive specifications and application details for: 21D7 Annular Ball Bearing.

Summary

Explore detailed summary information for bearing: 21D7. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 21D7
Federal Supply Classification: 3110 Unmounted Antifriction Bearings
(NSN) National Stock Number: 3110-00-554-5643
Item Name Code: 00014
Federal Item Identification Guide: A044A0
Assigment Date: 01/01/1963

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

20.00 millimeters nominal bore diameter, standard internal fit-up designation, 47.00 millimeters nominal overall outside diameter, radial load direction, straight bore shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-00-554-5643 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 20.00 millimeters nominal
Bore Shape: straight
Internal Fit-Up Designation: standard
Load Direction: radial
Overall Outside Diameter: 47.00 millimeters nominal
Overall Width: 14.0 millimeters nominal
Material: steel overall
Retainer Fabrication Method: pressed
Standard Tolerance Designation: abec no.1
Style Designator: loading groove, non-separable
Surface Finish: ground

Replaces

The NSN 3110-00-554-5643 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3110-00-155-6388	No Name Available	07/01/1976

Frequently Asked Questions

Find quick answers to common questions about bearing: 21D7. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-00-554-5643?: The FSCG of the NSN 3110-00-554-5643 is 3110

Does the NSN 3110-00-554-5643 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105028

Does NSN 3110-00-554-5643 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 3110-00-554-5643 contain precious materials?: Precious metal content is unknown

Does NSN 3110-00-554-5643 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.