Aerospace / Military
Aerospace Series General Aviation Rod Ends Spherical Bearings Mil Spec Series Rod Ends Spherical Bearings Bushings Approved Part Numbers
Commercial / Industrial
Rod End Bearings Inch Rod Ends Metric Rod Ends Spherical Bearings Inch Spherical Bearings Metric Spherical Bearings
Technical Resources
Terms and Definitions Articles Technical Data FAQs Key Term Translation Custom Engineered Products
Online Catalog
Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...
Request Information

Effective August 21st, 2023, the Naval Air Warfare Center Aircraft Division (NAWCAD) has disapproved Timken Aurora’s qualification status for SAE-AS81820 and SAE-AS81935 specifications. Timken Aurora is working diligently to get requalified.

  • Body - PH 13-8 Mo stainless steel per AMS 5629 - heat treated.
  • Ball - 440C stainless steel per AMS 5630 - heat treated.
  • Optional Ball - 13-8 Mo stainless steel per AMS 5629 - heat treated. (Specify by adding suffix "C" ex.: ATW-3ETC)
  • Race - 17-4 PH stainless steel per AMS 5643 - heat treated.
  • PTFE Liner - (AT 3200) Permanently bonded to race inside diameter, qualified to SAE-AS81820 Type A.
  • Temperature range: -65°F to +325°F.
  • No load rotational breakaway torque can be varied to meet specific application requirements.
  • Keyslots are available. Units are supplied without keyslots. When a keylsot is required, specify by adding suffix "K". Ex.: ATWK-3T.
  • As applicable, keyslots will conform to SAE-AS81935/3 or NAS 559.
  • Rod End Bearings listed are manufactured to conform to the dimensions, materials, and configurations of SAE-AS81935/9, and are approved for procurement under this specification.
Unit of Measure

Key Dimensions

Part Number

 N/A ATG-5ETC

SAE Part Number

N/A M81935/9-05CL

Thread Type

 N/A Left Hand

Thread Configuration

 N/A Female

B - Ball Bore

 N/A .3125 in

W - Ball Width

 N/A .375 in

H - Head Width

 N/A .291 in

A - Base to Center

 N/A 1.566 in

D - Head Diameter

 N/A .984 in

O - Ball Shoulder Diameter

 N/A .419 in

S - Max. Housing I.D.

 N/A .7500 in

E - Diameter

 N/A .413 in

K - Boss Diameter

 N/A .500 in

J - Wrench Flat Width

N/A .437 in

F - Boss Height

 N/A .188 in

Ball Diameter

 N/A .562 in

P - Drilled Hole Depth

 N/A .875 in

C - Thread Depth [inch]

 N/A .750 in

Thread Size

 N/A 5/16-24

Thread Class

 N/A UNJF-3B-LH

a - Misalignment Angle

 N/A 10 º

Approximate Brg. Weight

N/A .100 lb

Ultimate Radial Static Load Capacity

 N/A 8,900 lb

Fatique Load

 N/A 2,000 lb

Axial Proof Load

 N/A 700 lb

No Load Rotational Breakaway Torque

 N/A 1 to 15 in·lb

Note

 N/A For dimensional tolerances of listed features, see the PDF version of the catalog under the "View Product Catalogs" tab from the home page.