HM903249A

View detailed technical data, stock status, and sourcing information for: HM903249A
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-229-0272

Item Name Code

00023

Assigment Date

02/14/1969 (57 years ago)

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

duty class hm series special features, 1.7500 inches nominal bore diameter, afbma class 2 standard tolerance designation, 1.1142 inches nominal cone width, 0.1400 inches nominal cone corner radius

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Bore Diameter: 1.7500 inches nominal
Cone Corner Radius: 0.1400 inches nominal
Cone Width: 1.1142 inches nominal
Standard Tolerance Designation: afbma class 2
Special Features: duty class hm series
Material: steel overall
Style Designator: steep angle

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
176223	Tapered Roller Cone and Rollers
306276C91	Tapered Roller Cone and Rollers
75177-10	Tapered Roller Cone and Rollers
HM903249A	Tapered Roller Cone and Rollers

FAQs

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

What is the FSCG of the NSN 3110-00-229-0272?

The FSCG of the NSN 3110-00-229-0272 is 3110

Does the NSN 3110-00-229-0272 have a Schedule B code assigned?

Yes, the Schedule B code is 8482800080

Does NSN 3110-00-229-0272 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 3110-00-229-0272 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-229-0272 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 3110-00-229-0272 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Feb 14, 1969