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 5855-00-138-2386
NSN 6110-01-123-3240
NSN 6645-01-056-3417
NSN 5985-01-645-6790
NSN 6145-00-756-1580
NSN 5975-01-056-5514
NSN 5855-00-089-3974
NSN 5999-00-286-6231
NSN 6105-01-185-4060
NSN 6145-00-244-4360
NSN 5835-00-153-4100
NSN 5905-01-447-6069