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 7035-01-531-6554
NSN 5945-00-770-6649
NSN 7035-00-185-8683
NSN 6240-01-411-6902
NSN 5960-01-443-3067
NSN 7035-01-183-7550
NSN 5910-01-424-8467
NSN 5905-00-999-0862
NSN 5855-00-361-0167
NSN 6220-00-858-4831
NSN 5855-01-628-6427
NSN 5985-01-215-2210