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 7035-01-479-5268
NSN 6145-01-487-5589
NSN 5998-01-090-0998
NSN 6685-00-753-7668
NSN 5905-01-501-6178
NSN 6645-01-208-5090
NSN 6620-01-037-8468
NSN 6130-00-954-2859
NSN 5925-01-256-0163
NSN 6110-01-343-2260
NSN 4140-01-003-6850
NSN 5930-01-245-8636