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 5998-01-116-2066
NSN 6650-01-085-6088
NSN 5996-01-661-3195
NSN 5965-01-061-6871
NSN 5855-01-580-2322
NSN 5960-01-499-7172
NSN 7035-00-535-8109
NSN 6105-01-432-1342
NSN 5985-01-527-2898
NSN 6645-01-356-1179
NSN 5945-01-618-5312
NSN 2925-01-633-4048