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 5905-01-563-9172
NSN 6685-00-103-9589
NSN 5996-01-514-7341
NSN 5925-01-509-9040
NSN 5996-01-380-9484
NSN 5835-01-468-6170
NSN 5905-01-295-9043
NSN 6645-00-103-2517
NSN 5985-01-399-3491
NSN 5855-01-462-0495
NSN 5905-01-570-3363
NSN 5960-01-599-9821