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 5998-01-431-9795
NSN 5905-00-935-1142
NSN 6110-01-360-8911
NSN 6320-01-425-1417
NSN 5915-00-564-2490
NSN 5999-00-008-4217
NSN 6220-01-202-8907
NSN 5905-00-794-8521
NSN 5925-01-607-5684
NSN 6645-01-413-3965
NSN 6105-01-199-3244
NSN 5945-01-144-9066