77R4-2A3M

View detailed technical data, stock status, and sourcing information for: 77R4-2A3M
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-219-3596

Item Name Code

00014

Assigment Date

10/25/1985 (40 years ago)

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

0.1960 inches nominal overall width, 0.2500 inches nominal bore diameter, ground surface finish, pressed retainer fabrication method, 0.6250 inches nominal 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: 0.1960 inches nominal
Bore Diameter: 0.2500 inches nominal
Overall Outside Diameter: 0.6250 inches nominal
Surface Finish: ground
Retainer Fabrication Method: pressed
Shield Quantity: 2
Alignment Type: rigid
Load Direction: radial
Bore Shape: straight
Internal Fit-Up Designation: standard
Standard Tolerance Designation: abec no.3
Special Features: electric motor quality
Lubrication Material: grease
Lubrication Material Document And Classification: mil-g-25013 mil spec single material response
Material: steel retainer
Material: steel shield
Material: steel comp e52100 or steel comp 440c ball
Material: steel comp e52100 or steel comp 440c inner ring
Material: steel comp e52100 or steel comp 440c outer ring
Material Document And Classification: sae assn std 1st material response or aisi assn std 2nd material response ball
Material Document And Classification: sae assn std 1st material response or aisi assn std 2nd material response inner ring
Material Document And Classification: sae assn std 1st material response or aisi assn std 2nd material response outer ring
Style Designator: non-loading groove, non-separable

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
4131104-2A3M	Annular Ball Bearing
77R4-2A3M	Annular Ball Bearing
R4ZZ-2A3M	Annular Ball Bearing
S1KDD7-2A3M	Annular Ball Bearing
SR4HHA3K36LG48	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-219-3596?

The FSCG of the NSN 3110-01-219-3596 is 3110

Does the NSN 3110-01-219-3596 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-01-219-3596 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 3110-01-219-3596 contain precious materials?

Item does not contain precious metal.

Does NSN 3110-01-219-3596 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 3110-01-219-3596 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Oct 25, 1985