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 5960-00-340-3120
NSN 6220-00-812-0515
NSN 7035-01-204-9851
NSN 6685-01-515-8743
NSN 6610-00-225-9886
NSN 5855-01-391-7077
NSN 5990-01-203-6089
NSN 6320-01-021-6633
NSN 5945-00-857-4463
NSN 6645-01-061-5516
NSN 5985-01-113-7837
NSN 5975-01-539-7092