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 7035-00-628-3471
NSN 5975-00-350-5452
NSN 6110-01-442-6492
NSN 5960-01-399-4327
NSN 6645-00-107-8190
NSN 5910-01-078-6660
NSN 2925-01-520-4194
NSN 5910-01-158-9050
NSN 5950-01-123-8992
NSN 5999-01-503-0927
NSN 5990-01-224-8052
NSN 5985-00-900-0544