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 6645-01-076-9310
NSN 6110-01-217-3945
NSN 5950-00-737-0678
NSN 5950-01-606-5939
NSN 5990-00-394-3987
NSN 6220-01-102-8805
NSN 6620-01-245-0184
NSN 2925-00-905-2655
NSN 5996-00-079-0384
NSN 6240-01-476-7935
NSN 4140-01-527-6715
NSN 5920-00-518-1847