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 6320-01-111-8851
NSN 5920-01-200-6655
NSN 6135-01-449-0625
NSN 5945-01-249-9606
NSN 5999-01-192-9914
NSN 6685-01-598-7695
NSN 6135-01-223-3869
NSN 5985-00-166-1021
NSN 5990-01-106-3786
NSN 7035-00-803-3056
NSN 6620-01-407-1158
NSN 5920-00-893-4985