RS4 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: RS4 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: RS4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: RS4
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-661-7127
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1963

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

0.3380 inches minimum and 0.3430 inches maximum inner member width, 59.0 rockwell c nominal inner member hardness rating, groove external outer member lubrication feature, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 36.0 rockwell c nominal outer race member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-661-7127 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Hardness Rating: 36.0 rockwell c nominal outer race member
Hardness Rating: 59.0 rockwell c nominal inner member
Inner Member Width: 0.3380 inches minimum and 0.3430 inches maximum
Lubrication Feature: groove external outer member
Lubrication Feature: groove internal inner member
Lubrication Feature: perforation outer race member
Lubrication Feature: perforation inner member
Material: steel outer race member
Material: steel comp e52100 inner member
Outer Member Outside Diameter: 0.6557 inches minimum and 0.6562 inches maximum
Outer Member Width: 0.2500 inches nominal
Style Designator: without insert or liner
Surface Treatment: cadmium outer race member
Surface Treatment: chromium inner member

Replaces

The NSN 3120-00-661-7127 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-528-5523	No Name Available	06/01/1970
3120-00-988-6606	No Name Available	12/01/1983

Frequently Asked Questions

Find quick answers to common questions about bearing: RS4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-661-7127?: The FSCG of the NSN 3120-00-661-7127 is 3120

Does the NSN 3120-00-661-7127 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-661-7127 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 3120-00-661-7127 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-661-7127 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.