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 5925-01-384-3065
NSN 5925-01-366-4222
NSN 6685-01-394-4141
NSN 5990-01-617-5156
NSN 6150-00-487-4484
NSN 5930-01-280-0558
NSN 5895-00-140-4504
NSN 6685-01-524-1997
NSN 5999-01-102-1732
NSN 5920-01-025-5863
NSN 5910-01-576-3209
NSN 5835-01-125-6676