Breathing valve with by-pass hose, meets niosh/msha approval for intrinsically safe apparatus, sole source
No other part numbers with same form, fit, and function found.
NSN 5965-01-107-0950
NSN 5925-01-437-3452
NSN 5855-00-058-1293
NSN 5996-00-661-1151
NSN 5855-01-485-3429
NSN 6150-01-047-0879
NSN 6105-01-534-5360
NSN 6320-01-317-3663
NSN 5950-01-333-2371
NSN 5855-00-361-0167
NSN 5996-00-050-0907
NSN 6145-01-487-5589