Od is 0.375 in
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 5895-01-555-8226
NSN 5965-00-144-2543
NSN 5985-01-460-5184
NSN 2925-00-315-8442
NSN 5990-01-414-2778
NSN 5930-01-545-0360
NSN 6685-01-599-6640
NSN 5905-01-448-9664
NSN 2925-01-633-4048
NSN 5945-01-557-1882
NSN 6650-01-444-1321
NSN 5835-00-198-4936