Silicone, breathing valve with by-pass hose, meets niosh approval for intrinsically safe apparatus
No other part numbers with same form, fit, and function found.
NSN 6220-01-186-1669
NSN 6240-01-533-7305
NSN 6110-00-774-1792
NSN 5998-00-182-7932
NSN 5910-01-397-6245
NSN 6320-01-116-3980
NSN 5910-00-774-8137
NSN 5990-01-617-5156
NSN 5895-00-433-0337
NSN 6110-01-160-0214
NSN 5925-01-456-0763
NSN 5920-01-088-8312