19 October 2015 MILITARY SPECIFICATION SWITCHING UNIT SA-2498/ARC MIL-S-85673(AS) is inactive for new design and is no longer used, except for replacement purposes. Custodian: Preparing activity: Navy - AS Navy - AS Project 5821-2015-008 Review activity: DLA - GS NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the informat