77R4AT1MILG3278

View detailed technical data, stock status, and sourcing information for: 77R4AT1MILG3278
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-00-278-7240

Item Name Code

00014

Assigment Date

01/01/1963 (63 years ago)

0.7500 inches nominal overall outside diameter, pressed retainer fabrication method, 0.2500 inches nominal bore diameter, ground surface finish, 0.2810 inches nominal overall width

Product Characteristics

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

Overall Width: 0.2810 inches nominal
Bore Diameter: 0.2500 inches nominal
Overall Outside Diameter: 0.7500 inches nominal
Surface Finish: ground
Retainer Fabrication Method: pressed
Shield Quantity: 2
Load Direction: radial
Bore Shape: straight
Internal Fit-Up Designation: tight
Standard Tolerance Designation: abec no.1
Lubrication Material: grease
Lubrication Material Document And Classification: mil-g-23827 mil spec single material response
Material: steel overall
Style Designator: non-loading groove, non-separable
Nondefinitive Spec/Std Data: 11 type and 00 grade
Departure From Cited Designator: as modified by shield qty and lubrication material,as modified by internal fit-up designation

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
3110-00-277-0092	No Name Available	08/01/1978
3110-00-555-4138	No Name Available	07/01/1977
3110-00-618-2344	No Name Available	11/17/1971
3110-00-781-7202	No Name Available	06/04/2008

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
1100-11-3A	Annular Ball Bearing
302-1003P15	Annular Ball Bearing
77R4AMR1E	Annular Ball Bearing
77R4AMR1MILG3278	Annular Ball Bearing
77R4AT1CJ	Annular Ball Bearing
77R4AT1MILG3278	Annular Ball Bearing
CB31-15	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-00-278-7240?

The FSCG of the NSN 3110-00-278-7240 is 3110

Does the NSN 3110-00-278-7240 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-00-278-7240 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 3110-00-278-7240 contain precious materials?

Precious metal content is unknown

Does NSN 3110-00-278-7240 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 3110-00-278-7240 was assigned to the Federal Catalog?

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