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 5998-00-138-0012
NSN 6150-00-439-1526
NSN 6620-01-415-8550
NSN 6685-01-421-9939
NSN 5920-00-828-2824
NSN 5975-01-157-8140
NSN 4140-01-013-6807
NSN 4140-01-049-8312
NSN 6240-01-586-7621
NSN 5990-01-561-6949
NSN 5999-01-145-9150
NSN 5895-01-406-4165