A single component specifically designed to make a record of sonic variations.
NSN 6320-01-006-6138
NSN 5985-01-024-5030
NSN 5835-01-488-6678
NSN 5925-01-142-4020
NSN 6240-01-659-8546
NSN 6620-01-246-4314
NSN 6240-01-461-8193
NSN 6110-00-601-2985
NSN 6645-00-864-6794
NSN 5965-01-564-8876
NSN 5996-00-707-6228
NSN 6610-00-525-3305