An item used in ultrasonic therapy which requires no tuning and has a stabilized frequency.
NSN 5990-00-395-5703
NSN 6220-01-423-9491
NSN 5920-00-306-4872
NSN 6145-01-415-5261
NSN 6645-01-370-5264
NSN 5925-01-653-7069
NSN 5925-00-140-0009
NSN 6240-01-113-6412
NSN 6110-00-075-5660
NSN 7035-00-104-7613
NSN 7035-01-319-2315
NSN 4140-01-060-0962