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 5990-00-707-0731
NSN 6645-00-160-0503
NSN 5996-01-456-0488
NSN 5925-00-216-4480
NSN 6620-01-176-6956
NSN 5999-01-633-8332
NSN 5960-01-065-6730
NSN 5975-00-724-8501
NSN 5975-01-152-1960
NSN 6650-00-342-6447
NSN 6240-00-531-3187
NSN 5930-01-315-1455