https://everyspec.com/MS-Specs/MS5/MS5009A_NOTICE-1_18745/
MS5009 A NOTICE-1 RING RETAINING PROPELLER HUB SNAP
Title: MS5009A NOTICE-1, Version: A, Date: 1995-Jun-19, Status: Cancelled, Desc: (NOTICE 1) RING RETAINING PROPELLER HUB SNAP (19 JUN 1995) [NO SUPERSEDING...
noticeringretainingpropellerhub