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 5985-01-062-4741
NSN 6105-00-975-2985
NSN 6650-01-229-7500
NSN 6645-01-190-4297
NSN 5915-00-660-9207
NSN 5965-01-460-4172
NSN 5925-00-466-7308
NSN 6685-01-158-2720
NSN 5855-01-213-9076
NSN 5895-00-147-9998
NSN 7035-01-600-0777
NSN 5925-00-566-4169