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 5905-01-575-9084
NSN 6320-00-790-4844
NSN 7035-00-003-7518
NSN 6110-00-871-6429
NSN 5895-01-043-2193
NSN 5945-00-833-7745
NSN 5999-01-102-1732
NSN 5999-00-818-1603
NSN 5915-00-367-2854
NSN 5910-01-025-5408
NSN 5960-00-074-8968
NSN 5920-01-230-8806