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 5998-01-101-9062
NSN 5975-01-273-5966
NSN 6320-01-119-3935
NSN 2925-01-183-2897
NSN 5965-00-035-4556
NSN 5985-01-587-3952
NSN 6240-01-546-3347
NSN 6645-01-061-5516
NSN 6320-01-378-0221
NSN 5925-00-269-2685
NSN 5960-01-416-6187
NSN 5835-01-209-6410