MS21154S07 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: MS21154S07 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: MS21154S07. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: MS21154S07
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-356-3229
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 04/02/1992

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.

groove external outer member lubrication feature, 27.0 rockwell c minimum and 36.0 rockwell c maximum outer race member hardness rating, 0.4350 inches minimum and 0.4370 inches maximum inner member width, 0.4370 inches minimum and 0.4375 inches maximum bore diameter, 56.0 rockwell c minimum inner member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-356-3229 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.4370 inches minimum and 0.4375 inches maximum
Hardness Rating: 56.0 rockwell c minimum inner member
Hardness Rating: 27.0 rockwell c minimum and 36.0 rockwell c maximum outer race member
Inner Member Width: 0.4350 inches minimum and 0.4370 inches maximum
Lubrication Feature: groove external outer member
Lubrication Feature: groove internal inner member
Lubrication Feature: groove internal outer member
Lubrication Feature: perforation outer race member
Lubrication Feature: perforation inner member
Material Document And Classification: ans 5630 assn std single material response inner member
Material Document And Classification: mil-g-21164 mil spec single material response lubrication
Material Document And Classification: mil-s-6758 mil spec 1st material response or mil-s-6758 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response outer race member
Material: grease and disulfide molybdenum lubrication
Material: steel comp 440c inner member
Material: steel comp e4340 or steel comp 4130 or steel comp 8630 outer race member
Outer Member Outside Diameter: 0.9057 inches minimum and 0.9062 inches maximum
Outer Member Width: 0.3380 inches minimum and 0.3480 inches maximum
Static Radial Load Rating: 18850 pounds
Style Designator: without insert or liner with staking groove
Surface Treatment Document And Classification: qq-c-320,cl 2 ty 1 fed spec single treatment response or qq-c-320,cl 2 ty 2 fed spec single treatment response inner member
Surface Treatment Document And Classification: qq-p-416,ty1 cl 2 fed spec single treatment response outer race member
Surface Treatment: cadmium outer race member
Surface Treatment: chromium inner member

Frequently Asked Questions

Find quick answers to common questions about bearing: MS21154S07. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-356-3229?: The FSCG of the NSN 3120-01-356-3229 is 3120

Does the NSN 3120-01-356-3229 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-01-356-3229 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 3120-01-356-3229 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-356-3229 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 3120-01-356-3229 was assigned to the Federal Catalog?: It was assigned 34 years ago, on Thu, Apr 2, 1992

Price & Availability

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Stock Availability

This product is available in the following quantities and conditions:

New Material	45
New Surplus	1
Total	46

Availability of this item was last updated on: 03/23/2026 06:03 PM EDT. Availability may have changed since then. Request a quote for up to date pricing and availability.