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 5999-00-281-1021
NSN 6645-00-107-8190
NSN 7035-01-556-7412
NSN 5990-00-686-5868
NSN 5855-01-266-1645
NSN 2925-01-354-1752
NSN 5855-01-516-5211
NSN 7035-01-579-3587
NSN 6110-01-585-7582
NSN 5855-01-417-1315
NSN 5996-01-506-7585
NSN 6135-01-089-4888