Air line pressure-demand hood type; niosh approval tc-19c-309
No other part numbers with same form, fit, and function found.
NSN 5910-00-606-3952
NSN 5998-00-408-3821
NSN 6220-00-279-8819
NSN 5975-00-239-2364
NSN 6150-00-350-3086
NSN 5915-01-069-6822
NSN 6610-01-143-5650
NSN 5996-01-645-4831
NSN 6320-01-426-8947
NSN 4140-00-660-8699
NSN 4140-00-578-7726
NSN 5930-01-020-2634