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 4140-00-317-5014
NSN 5975-00-978-9078
NSN 5930-00-546-5596
NSN 5999-01-660-3418
NSN 6145-01-199-6292
NSN 5895-00-792-8591
NSN 5996-00-466-2219
NSN 5985-01-446-0712
NSN 6220-01-366-6747
NSN 5975-01-451-4415
NSN 5950-00-166-4064
NSN 7035-01-157-0028