55171 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: 55171 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: 55171. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 55171
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-975-4984
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1962

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.

30.0 rockwell c minimum and 42.0 rockwell c maximum outer race member hardness rating, 0.3380 inches minimum and 0.3430 inches maximum inner member width, 56.0 rockwell c nominal inner member hardness rating, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, groove internal inner member lubrication feature

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-975-4984 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.2495 inches minimum and 0.2500 inches maximum
Hardness Rating: 56.0 rockwell c nominal inner member
Hardness Rating: 30.0 rockwell c minimum and 42.0 rockwell c maximum outer race member
Inner Member Width: 0.3380 inches minimum and 0.3430 inches maximum
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: mil-g-23827 mil spec single material response lubrication
Material: grease and lubricant dry film lubrication
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: 0.2450 inches minimum and 0.2550 inches maximum
Static Radial Load Rating: 7300 pounds
Style Designator: without insert or liner
Surface Treatment: cadmium outer race member
Surface Treatment: chromium inner member
Test Data Document: "81349-mil-b-5628 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Frequently Asked Questions

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What is the FSCG of the NSN 3120-00-975-4984?: The FSCG of the NSN 3120-00-975-4984 is 3120

Does the NSN 3120-00-975-4984 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-975-4984 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 3120-00-975-4984 contain precious materials?: Precious metal content is unknown

Does NSN 3120-00-975-4984 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.