Standard, blue, 5-strap, papr, niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus
NSN 6685-01-123-8900
NSN 6240-00-135-7071
NSN 4140-00-952-4047
NSN 5935-01-548-4814
NSN 6610-01-621-0422
NSN 5945-00-018-3465
NSN 6610-00-899-7445
NSN 5855-01-079-8716
NSN 6610-01-421-4396
NSN 5985-00-111-1605
NSN 5985-00-324-7526
NSN 5905-00-424-3099