A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6685-00-526-9433
NSN 5950-01-098-7475
NSN 2925-01-043-9786
NSN 5835-01-354-0566
NSN 6620-00-555-3992
NSN 6150-01-112-0227
NSN 5945-01-226-3601
NSN 5930-00-573-1353
NSN 5925-01-332-5634
NSN 2925-00-486-8640
NSN 5930-00-558-9157
NSN 6145-01-187-8909