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 6145-01-612-1749
NSN 6645-01-602-8275
NSN 5915-00-112-0947
NSN 5905-01-361-9076
NSN 6105-01-586-3592
NSN 5985-00-121-7702
NSN 6130-01-648-8580
NSN 5945-01-397-7255
NSN 5960-00-493-5589
NSN 6220-00-124-8130
NSN 5895-01-515-4222
NSN 6240-01-076-1793