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 5905-01-468-5532
NSN 5960-01-038-5637
NSN 6110-00-281-3676
NSN 5910-01-282-4639
NSN 5960-00-792-6532
NSN 5935-01-508-4753
NSN 5910-01-545-6648
NSN 6130-01-306-8971
NSN 5998-01-241-8043
NSN 5985-00-277-7371
NSN 5910-01-435-1347
NSN 5895-01-534-6419