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 6685-01-027-1168
NSN 5895-00-961-6329
NSN 5895-01-323-3123
NSN 4140-01-025-7404
NSN 6620-01-115-1307
NSN 6620-01-301-3258
NSN 5910-01-217-9076
NSN 5855-01-570-0989
NSN 5920-00-989-0490
NSN 5965-01-023-7095
NSN 5930-01-514-1892
NSN 5930-01-270-9567