Used w/helmet, flyer's sph-4
An item of foamed plastic molded to conform to the contour of the inside of a helmet shell. It is designed to be permanently installed in the helmet to afford increased protection to the head from impact.
Classification: Military wearing apparel of all types and materials, including footwear and headwear
NSN 5895-00-200-7114
NSN 7035-01-069-3537
NSN 5925-01-346-6175
NSN 4140-01-561-1279
NSN 5996-01-600-0348
NSN 6105-01-542-4117
NSN 5999-01-443-6725
NSN 6240-00-115-0795
NSN 6620-00-877-3266
NSN 5950-00-787-4607
NSN 5895-01-136-8680
NSN 5925-00-905-5135