77R4A

View detailed technical data, stock status, and sourcing information for: 77R4A
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Federal Supply Group

Bearings

Federal Supply Classification

3110 Unmounted Antifriction Bearings

National Stock Number

3110-01-049-6272

Item Name Code

00014

Assigment Date

10/21/1977 (48 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.

0.2812 inches nominal overall width, pressed retainer fabrication method, 0.7500 inches nominal overall outside diameter, ground surface finish, 0.2500 inches nominal bore 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: 0.2812 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 Contact Angular Direction: primarily radial
Standard Tolerance Designation: abec no.1
Lubrication Material: grease
Lubrication Material Document And Classification: mil-g-23827 mil spec single material response
Material: steel corrosion resisting overall
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
142C838H01	Annular Ball Bearing
5S1KDD	Annular Ball Bearing
77R4A	Annular Ball Bearing
77R4AMILG23827	Annular Ball Bearing
R4AFF	Annular Ball Bearing

FAQs

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

What is the FSCG of the NSN 3110-01-049-6272?

The FSCG of the NSN 3110-01-049-6272 is 3110

Does the NSN 3110-01-049-6272 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105028

Does NSN 3110-01-049-6272 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 3110-01-049-6272 contain precious materials?

Precious metal content is unknown

Does NSN 3110-01-049-6272 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 3110-01-049-6272 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Fri, Oct 21, 1977