10-32 x-back, enhanced combat helmet
No other part numbers with same form, fit, and function found.
NSN 5895-01-412-3317
NSN 5920-01-426-8517
NSN 6145-00-933-0556
NSN 6650-01-369-5433
NSN 5960-00-060-7592
NSN 5996-01-073-1747
NSN 6150-01-557-8195
NSN 6130-01-369-4704
NSN 5915-01-518-8114
NSN 6610-01-599-4462
NSN 6135-01-525-6979
NSN 6105-00-779-0769