ST4M123-8 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: ST4M123-8 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: ST4M123-8. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
ST4M123-8
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-00-323-1472
Item Name Code
13208
Federal Item Identification Guide
A045A0
Assigment Date
12/03/1973

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.

37.0 rockwell c minimum inner member hardness rating, feat criticality code justification, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, 28.0 rockwell c minimum and 36.0 rockwell c maximum outer race member hardness rating, 0.4950 inches minimum and 0.5000 inches maximum inner member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-323-1472 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter
0.4995 inches minimum and 0.5000 inches maximum
Criticality Code Justification
feat
Hardness Rating
37.0 rockwell c minimum inner member
Hardness Rating
28.0 rockwell c minimum and 36.0 rockwell c maximum outer race member
Inner Member Width
0.4950 inches minimum and 0.5000 inches maximum
Material
copper alloy 172 or copper alloy 173 inner member
Material
steel comp 630 outer race member
Outer Member Outside Diameter
0.9995 inches minimum and 1.0000 inches maximum
Outer Member Width
0.3850 inches minimum and 0.3900 inches maximum
Special Features
critical form, fit, function
Static Radial Load Rating
20400 pounds
Style Designator
without insert or liner with staking groove

Frequently Asked Questions

Find quick answers to common questions about bearing: ST4M123-8. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-323-1472?
The FSCG of the NSN 3120-00-323-1472 is 3120
Does the NSN 3120-00-323-1472 have a Schedule B code assigned?
Yes, the Schedule B code is 8482300040
Does NSN 3120-00-323-1472 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 3120-00-323-1472 contain precious materials?
Precious metal content is unknown
Does NSN 3120-00-323-1472 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 3120-00-323-1472 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Mon, Dec 3, 1973

Price & Availability

Fill out the form to get pricing and availability details for the bearing: ST4M123-8

Stock Availability

This product is available in the following quantities and conditions:

New Material 14
New Surplus 2
New Material 18
New Surplus 1
Total 35
Availability of this item was last updated on: 09/03/2026 11:09 AM EDT. Availability may have changed since then. Request a quote for up to date pricing and availability.

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