4-2271 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: 4-2271 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: 4-2271. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 4-2271
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-540-7356
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.

steel overall material, 0.8745 inches minimum and 0.8750 inches maximum bore diameter, 1.5620 inches minimum and 1.5625 inches maximum outer member outside diameter, 0.8700 inches minimum and 0.8750 inches maximum inner member width, 0.7080 inches nominal outer member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-540-7356 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.8745 inches minimum and 0.8750 inches maximum
Inner Member Width: 0.8700 inches minimum and 0.8750 inches maximum
Material: steel overall
Outer Member Outside Diameter: 1.5620 inches minimum and 1.5625 inches maximum
Outer Member Width: 0.7080 inches nominal
Special Features: bore of ball and id of race coated with solid film lube,assy to have 20 in. initial misalignment,torque preload to 0.0005 tir diametrial clearance between ball and race,oil holes 0.062 in dia through ball and race spaced 20 deg
Style Designator: without insert or liner
Surface Treatment: chromium inner member

Replaces

The NSN 3120-00-540-7356 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-661-7107	No Name Available	02/01/1984
3120-00-661-7121	No Name Available	12/01/1983
3120-00-813-3734	No Name Available	08/13/2001

Frequently Asked Questions

Find quick answers to common questions about bearing: 4-2271. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-540-7356?: The FSCG of the NSN 3120-00-540-7356 is 3120

Does the NSN 3120-00-540-7356 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-540-7356 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 3120-00-540-7356 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-540-7356 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.