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 6320-01-172-6103
NSN 5855-00-951-6483
NSN 5835-00-644-4512
NSN 5999-00-433-5420
NSN 5950-00-312-5369
NSN 5925-00-337-8138
NSN 6130-00-836-3636
NSN 5925-01-634-0664
NSN 6145-00-681-1585
NSN 5990-01-389-1196
NSN 5910-01-040-0915
NSN 5965-01-279-1075