Liner, helmet (zetaliner), size 13 inches, 3/8 inches thick, the zetaliner is to be used on the 55/p and sph-4 af helmets for fitting the helmets to the crewmember's head, providing comfort and preventing hot spots.
No other part numbers with same form, fit, and function found.
Classification: Military wearing apparel of all types and materials, including footwear and headwear
NSN 6320-01-224-0063
NSN 5945-00-338-9134
NSN 5999-00-585-3338
NSN 6240-01-417-3656
NSN 5960-01-258-6708
NSN 5999-01-419-5014
NSN 6130-01-408-0772
NSN 5990-00-546-8619
NSN 6645-00-262-7448
NSN 5835-01-626-9603
NSN 5945-01-047-9194
NSN 2925-01-628-4219