Matl is soft per mil-std-670-b, grade te-3
An elastic material of a cellular structure having smooth, crepe, or porous surface. It is produced in various thicknesses. Sheets are limited to widths greater than 6 inches (152.4 mm). It may or may not have a nonrubber backing.
Classification: Plates, sheets and strip of vulcanized rubber, except hard rubber, of cellular rubber
NSN 6240-01-503-8717
NSN 5905-00-845-9095
NSN 6130-00-782-0353
NSN 6110-01-168-8600
NSN 6610-01-133-9812
NSN 4140-01-550-2971
NSN 5905-01-161-9534
NSN 6135-01-630-3158
NSN 5990-01-097-4721
NSN 5998-00-253-4410
NSN 5998-01-034-4936
NSN 5975-01-109-6663