Any material specifically designed and constructed to resist deterioration from the action of heat, gas, chemicals or liquids and used to create a tight seal. It is supplied in loose form or in coils, spirals, spools or cut lengths, usually having a square or round cross section. For rubber items having a round cross section, see rubber round section. Excludes rope, asbestos; calking cotton; and calking lead. See also packing, preformed; and oakum.
NSN 6620-01-423-7300
NSN 4140-01-178-9391
NSN 2925-00-957-7329
NSN 5960-00-597-2680
NSN 6685-00-259-3013
NSN 5935-00-188-9706
NSN 5950-00-223-2910
NSN 5996-00-104-8293
NSN 2925-01-443-5929
NSN 5855-01-580-0645
NSN 5835-01-157-5886
NSN 6685-01-253-8036