728300

View detailed technical data, stock status, and sourcing information for: 728300
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-975-2132

Item Name Code

00028

Assigment Date

10/05/1966 (59 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

2.1679 inches minimum and 2.1687 inches maximum bore diameter, 1.1200 inches minimum and 1.1250 inches maximum overall width, nonstandard taper bore shape, ground surface finish, 2.4994 inches minimum and 2.5000 inches maximum overall outside diameter

Product Characteristics

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

Overall Width: 1.1200 inches minimum and 1.1250 inches maximum
Bore Diameter: 2.1679 inches minimum and 2.1687 inches maximum
Overall Outside Diameter: 2.4994 inches minimum and 2.5000 inches maximum
Surface Finish: ground
Bore Shape: nonstandard taper
Special Features: two @1/4 in. dia holes 180 deg apart 0.562 in. from end,rockwell hardness rating 60 to 64,finsh case harden 0.025 in. to 0.045 in. max taper,id 0.0005 in.,od 0.0004 in.,wall 0.0006 in. inside corners chamfered
Material: steel overall
Style Designator: solid inner race, with bore chamfer, journal and needle

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
728300	Inner Bearing Ring

FAQs

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

What is the FSCG of the NSN 3110-00-975-2132?

The FSCG of the NSN 3110-00-975-2132 is 3110

Does the NSN 3110-00-975-2132 have a Schedule B code assigned?

Yes, the Schedule B code is 8482991010

Does NSN 3110-00-975-2132 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 3110-00-975-2132 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-975-2132 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 3110-00-975-2132 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Oct 5, 1966