Subject item is a sole source with ocenco inc (03wy2), product number 643040 (m20.2t mouthpiece kit), this is an accessory part for the emergency escape breathing (eebd), no first articles will be required since the end item quality will be assured by niosh certification, pgc assigned to the nsn is 25787
No other part numbers with same form, fit, and function found.
NSN 5910-01-204-8324
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NSN 5985-01-360-4171
NSN 5905-01-531-5917
NSN 6240-01-227-4178
NSN 5930-00-112-9126
NSN 6220-01-497-4600
NSN 6145-00-958-2537
NSN 6620-01-202-4706
NSN 5855-01-073-1784
NSN 5998-01-177-2540
NSN 7035-00-238-3662