NAS-539 Complete Document History
Knob Assembly, Transilluminated Pointer

Complete Current Edition:
   REVISION 6 S23 - STABILIZED IN 2023 - July 31, 2023

Obsolete Revision Information:
   6TH EDITION - KNOB ASSEMBLY, TRANSILLUMINATED POINTER - June 28, 2019
   REVISION 4 - Knob Assembly, Transilluminated Pointer - June 30, 1992
   REVISION 3 - KNOB ASSEMBLY, TRANSILLUMINATE - Feb. 25, 1987