Material is rubber elastomer which is dupont kalrez 4079
A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6220-01-261-4888
NSN 6110-00-296-0500
NSN 2925-00-172-9264
NSN 6135-01-136-1059
NSN 6135-01-515-9626
NSN 6685-01-343-2955
NSN 6150-01-511-0013
NSN 2925-00-233-5644
NSN 6320-01-089-9086
NSN 5935-00-142-4880
NSN 6130-01-371-0415
NSN 5935-01-590-2921