NAVY MIL-P-85833
NAVY ML-P-85833 1989-NOV-06 PROTECTVE ASSEMBLY HELCOPTER ARCREWMAN CHEMCAL BOLOGCAL RADOLOGCAL
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This specification establishes the requirements for the manufacture and acceptance of a protective assembly (PASS) to provide head, eye and respiratory protection for helicopter aircrewmen in a chemical, biological and radiological (CBR) environment.