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 5905-01-023-2750
NSN 6650-00-491-7920
NSN 4140-01-564-9781
NSN 5945-01-024-9378
NSN 7035-01-285-2240
NSN 6130-00-272-5351
NSN 5996-00-161-4202
NSN 5998-01-212-5057
NSN 5975-01-188-0232
NSN 5895-01-076-4204
NSN 6320-00-925-0558
NSN 5925-01-311-5322