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 6145-01-094-0442
NSN 6135-01-162-0943
NSN 5960-01-141-6489
NSN 6135-01-500-0572
NSN 6240-01-204-6639
NSN 5935-00-653-8370
NSN 6130-01-515-5808
NSN 5975-01-421-2230
NSN 6240-00-432-2705
NSN 5975-00-587-9669
NSN 6650-01-313-8949
NSN 5998-00-228-6067