21D241

View detailed technical data, stock status, and sourcing information for: 21D241
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-278-7497

Item Name Code

00014

Assigment Date

01/01/1963 (63 years ago)

An assembled unit, composed of a housing incorporating a single or multiple row ball bearing(s), designed to meet various or specific conditions of mounting.

0.3837 inches minimum and 0.3857 inches maximum overall width, ground surface finish, 1.3750 inches minimum and 1.3775 inches maximum overall outside diameter, 0.6690 inches minimum and 0.6693 inches maximum bore 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: 0.3837 inches minimum and 0.3857 inches maximum
Bore Diameter: 0.6690 inches minimum and 0.6693 inches maximum
Overall Outside Diameter: 1.3750 inches minimum and 1.3775 inches maximum
Surface Finish: ground
Retainer Fabrication Method: pressed
Load Direction: radial
Bore Shape: straight
Internal Clearance: 0.0001 inches minimum radial and 0.0004 inches maximum radial and 0.0010 inches minimum axial and 0.0050 inches maximum axial
Special Features: cross corner tolerance held to 0.3857 in. max to 0.3837 in. min; selected,classified and tested by the assy mfr at ais plant
Material: steel overall
Style Designator: non-loading groove, non-separable

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
21D241	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-278-7497?

The FSCG of the NSN 3110-00-278-7497 is 3110

Does the NSN 3110-00-278-7497 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-278-7497 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 3110-00-278-7497 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-00-278-7497 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 3110-00-278-7497 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963