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 5855-00-896-4047
NSN 5975-00-779-3319
NSN 5935-01-093-8632
NSN 6645-00-383-7783
NSN 5998-01-330-9336
NSN 6610-01-041-8015
NSN 5925-00-118-8059
NSN 6620-00-553-8988
NSN 6220-00-269-4556
NSN 5965-01-284-5076
NSN 5925-00-332-0018
NSN 5999-00-147-7467