H491

View detailed technical data, stock status, and sourcing information for: H491
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-227-3210

Item Name Code

00051

Assigment Date

03/23/1966 (60 years ago)

0.9995 inches minimum and 1.0000 inches maximum bore diameter, 1.2550 inches minimum and 1.2600 inches maximum overall width, ground surface finish, 1.7495 inches minimum and 1.7500 inches maximum 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: 1.2550 inches minimum and 1.2600 inches maximum
Bore Diameter: 0.9995 inches minimum and 1.0000 inches maximum
Overall Outside Diameter: 1.7495 inches minimum and 1.7500 inches maximum
Surface Finish: ground
Retainer Fabrication Method: pressed
Alignment Type: rigid
Standard Tolerance Designation: afbma std tolerance for industrial needle bearings
Special Features: oil hole and oil groove in outer ring,oil hole and oil groove in inner ring,mfr std retainer
Material: steel overall
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
15901-6	Needle Roller Bearing
202820	Needle Roller Bearing
7235MCIR7235	Needle Roller Bearing
858264-2	Needle Roller Bearing
E-7235	Needle Roller Bearing
ESJ7235	Needle Roller Bearing
H491	Needle Roller Bearing
HJRR-202820-IR-	Needle Roller Bearing
MR20MI16	Needle Roller Bearing
MS500072-11	Needle Roller Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-227-3210?

The FSCG of the NSN 3110-00-227-3210 is 3110

Does the NSN 3110-00-227-3210 have a Schedule B code assigned?

Yes, the Schedule B code is 8482400000

Does NSN 3110-00-227-3210 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 3110-00-227-3210 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-227-3210 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 3110-00-227-3210 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Mar 23, 1966