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 5895-00-190-5709
NSN 5835-00-540-9669
NSN 6145-01-528-0247
NSN 4140-00-269-5668
NSN 5975-01-068-4125
NSN 5950-00-188-0125
NSN 5895-01-606-9459
NSN 5915-01-124-3505
NSN 6105-00-635-6693
NSN 5960-01-462-1864
NSN 5895-01-467-5374
NSN 6685-01-548-9660