MIL-PRF-87819/1B, PERFORMANCE SPECIFICATIONS SHEET: HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE, HIGH AMBIENT NOISE LEVELS, 105-125 dB, M87819/1-O1 (30-SEP-2009)

MIL-PRF-87819/1B, PERFORMANCE SPECIFICATIONS SHEET: HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE, HIGH AMBIENT NOISE LEVELS, 105-125 dB, M87819/1-O1 (30-SEP-2009)., This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-87819.