Niki Posted October 18, 2015 Share #1 Posted October 18, 2015 This my P-4A helmet with a Ms22001/MBU-3/p oxygen mask that i bought some years ago as one of my first helmets . what confused my that the oxygen mask has two names on it MS22001 on the front and on the right top sight MBU-3/p? I'm still learning every day with my collection and i know that the forum has lots of experience on the matter. So hope you guys can help me with this question. Link to comment Share on other sites More sharing options...
Niki Posted October 18, 2015 Author Share #2 Posted October 18, 2015 some other picts. Link to comment Share on other sites More sharing options...
doyler Posted October 18, 2015 Share #3 Posted October 18, 2015 Nice helmet. Link to comment Share on other sites More sharing options...
phantomfixer Posted October 18, 2015 Share #4 Posted October 18, 2015 It is my understanding the MBU-3/P is an after production designation....and might have something to do with the plastic stiffener used...I do not think the first run MS22001 had the 3/P suspension system Very nice set up... Link to comment Share on other sites More sharing options...
northcoastaero Posted October 18, 2015 Share #5 Posted October 18, 2015 I believe the MBU-3/P has a longer hose than the standard USAF MS-22001 and uses 3 pin hose end connector. Link to comment Share on other sites More sharing options...
Nack Posted October 19, 2015 Share #6 Posted October 19, 2015 These are super cool. Link to comment Share on other sites More sharing options...
Sabrejet Posted October 19, 2015 Share #7 Posted October 19, 2015 May I add my P-series to the mix? Link to comment Share on other sites More sharing options...
BlueBookGuy Posted October 19, 2015 Share #8 Posted October 19, 2015 In a certain sense, much cooler the earlier P helmets than those with an added visor. Link to comment Share on other sites More sharing options...
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