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 4140-01-416-2798
NSN 6145-01-555-9894
NSN 5950-00-932-3232
NSN 5895-01-144-0131
NSN 5950-01-447-6105
NSN 5975-01-441-8386
NSN 6130-01-485-3459
NSN 6145-01-428-2448
NSN 6320-00-400-8042
NSN 5990-00-226-1152
NSN 5990-01-461-8969
NSN 5945-01-141-6697