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: Gaskets,washers & other seals
NSN 7035-01-213-4008
NSN 5990-01-078-1294
NSN 5925-01-167-8144
NSN 6110-00-124-8940
NSN 5925-01-631-3147
NSN 6320-01-288-4783
NSN 4140-00-594-4452
NSN 6220-01-173-7860
NSN 5915-01-596-8573
NSN 6645-01-274-8770
NSN 6685-00-812-1160
NSN 6110-01-562-4717