ER-28

View detailed technical data, stock status, and sourcing information for: ER-28
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-627-1177

Item Name Code

00014

Assigment Date

01/01/1963 (63 years ago)

1.0938 inches nominal outer ring width, 1.7500 inches minimum and 1.7505 inches maximum bore diameter, ground surface finish, 3.3459 inches minimum and 3.3465 inches maximum overall outside diameter, 1.9325 inches minimum and 1.9375 inches maximum inner ring width

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 minimum and 1.7505 inches maximum
Overall Outside Diameter: 3.3459 inches minimum and 3.3465 inches maximum
Outer Ring Width: 1.0938 inches nominal
Inner Ring Width: 1.9325 inches minimum and 1.9375 inches maximum
Surface Finish: ground
Seal Quantity: 2
Bearing Seal Type: labyrinth
Load Direction: radial
Bore Shape: straight
Internal Fit-Up Designation: standard
Features Provided: snap ring-groove mounting and mounting groove
Special Features: oil hole and groove in outer ring
Lubrication Material: grease
Lubrication Material Document And Classification: dod-g-24508 mil spec single material response
Material: steel or copper alloy retainer
Material: steel ball
Material: steel inner ring
Material: steel outer ring
Material: wool seal
Style Designator: single row ball, not self-aligning, inner ring extends both sides, with setscrew in inner ring, grease groove and snap ring on outer ring

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3130-01-361-7284	No Name Available	12/01/1996

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
10S44	Annular Ball Bearing
ER-28	Annular Ball Bearing
ER-28K	Annular Ball Bearing
ER-28T	Annular Ball Bearing
ER28	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-627-1177?

The FSCG of the NSN 3110-00-627-1177 is 3110

Does the NSN 3110-00-627-1177 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-627-1177 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 3110-00-627-1177 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-00-627-1177 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 3110-00-627-1177 was assigned to the Federal Catalog?

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