KMDB48-20 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: KMDB48-20 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: KMDB48-20. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: KMDB48-20
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-402-8971
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 06/08/1970

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.

2.9990 inches minimum and 3.0000 inches maximum bore diameter, 2.6200 inches minimum and 2.6250 inches maximum inner member width, steel comp 630 outer race member material, steel comp 440c inner member material, plastic polytetrafluoroethylene race liner material

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-402-8971 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 2.9990 inches minimum and 3.0000 inches maximum
Inner Member Width: 2.6200 inches minimum and 2.6250 inches maximum
Material: plastic polytetrafluoroethylene race liner
Material: steel comp 440c inner member
Material: steel comp 630 outer race member
Outer Member Outside Diameter: 4.7472 inches minimum and 4.7480 inches maximum
Outer Member Width: 2.2500 inches minimum and 2.2600 inches maximum
Special Features: plastic,polytetrafluoroethylene,self-lubricated liner bonded to id of inner member
Static Radial Load Rating: 582000 pounds
Style Designator: with insert and/or liner with staking groove

Replaces

The NSN 3120-00-402-8971 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-451-2159	No Name Available	12/01/1983

Frequently Asked Questions

Find quick answers to common questions about bearing: KMDB48-20. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-402-8971?: The FSCG of the NSN 3120-00-402-8971 is 3120

Does the NSN 3120-00-402-8971 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-402-8971 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 3120-00-402-8971 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-402-8971 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.