03-503-08DD Self-Aligning Plain Bearing

Comprehensive specifications and application details for: 03-503-08DD Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: 03-503-08DD. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 03-503-08DD
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-100-6954
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 12/10/1972

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.

28.0 rockwell c minimum and 36.0 rockwell c maximum outer race member hardness rating, groove external outer member lubrication feature, 55.0 rockwell c minimum and 60.0 rockwell c maximum inner member hardness rating, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, 0.4950 inches minimum and 0.5000 inches maximum inner member width

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-100-6954 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 0.4995 inches minimum and 0.5000 inches maximum
Hardness Rating: 55.0 rockwell c minimum and 60.0 rockwell c maximum 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
Lubrication Feature: groove external outer member
Lubrication Feature: groove internal outer member
Lubrication Feature: perforation outer race member
Material Document And Classification: ams 5643 assn std single material response outer race member
Material Document And Classification: bms 3-8, mcdonnell douglas corp, mcdonnell aircraft division mfr ref single material response lubrication
Material Document And Classification: qq-s-763,class 440c fed spec single material response inner member
Material: lubricant dry film lubrication
Material: steel comp 440c 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 0.3950 inches maximum
Static Radial Load Rating: 30000 pounds
Style Designator: without insert or liner

Replaces

The NSN 3120-00-100-6954 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-007-0191	No Name Available	01/01/1984

Frequently Asked Questions

Find quick answers to common questions about bearing: 03-503-08DD. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-100-6954?: The FSCG of the NSN 3120-00-100-6954 is 3120

Does the NSN 3120-00-100-6954 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-100-6954 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 3120-00-100-6954 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-100-6954 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.