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.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 4140-01-372-1039
NSN 5930-01-170-2205
NSN 6610-01-121-0190
NSN 6650-01-483-9191
NSN 6145-00-553-8196
NSN 5905-01-578-7330
NSN 6610-00-083-3870
NSN 6685-01-103-3143
NSN 5999-00-100-5761
NSN 5985-01-621-7533
NSN 5925-00-491-8985
NSN 6650-00-216-6365