75 durometer, as568-237
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.
NSN 5930-01-561-0312
NSN 5985-01-456-4829
NSN 5905-01-046-5290
NSN 5950-01-583-9877
NSN 5990-01-555-6616
NSN 5920-01-126-6722
NSN 5835-01-423-9203
NSN 5975-01-569-0517
NSN 5930-01-045-5531
NSN 6150-01-238-2292
NSN 6135-01-092-4734
NSN 5998-01-160-6183