Can also be used for positive pressure operation; u/w breathing apparatus, 4240-00-109-3287 shown in af to. 14s5-11-11, fig 8-2, index 32
A rigid item which serves as a reinforcement for the nose region and has accommodations to hold in place the elastic band of the oxygen mask.
NSN 6105-01-145-5046
NSN 6130-01-360-5637
NSN 5930-01-320-7580
NSN 5975-00-513-8966
NSN 6105-00-822-5165
NSN 5925-01-574-8127
NSN 5998-01-250-2887
NSN 5945-01-324-3749
NSN 5895-01-406-3729
NSN 5996-01-397-2142
NSN 6240-01-217-8287
NSN 5975-01-287-6088