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 5895-00-870-0088
NSN 7035-00-185-8683
NSN 6320-01-296-3181
NSN 2925-01-159-0506
NSN 5990-01-296-8190
NSN 5975-01-064-7232
NSN 6105-00-580-1435
NSN 7035-01-462-1957
NSN 6220-01-431-7319
NSN 5915-00-284-5430
NSN 5990-01-419-0661
NSN 5985-01-461-3531