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 5998-01-432-1383
NSN 6110-00-506-2352
NSN 5950-01-281-7506
NSN 6685-01-089-8141
NSN 5990-01-443-2931
NSN 6145-01-186-1334
NSN 6685-01-221-2961
NSN 5905-00-023-6175
NSN 5998-01-457-0872
NSN 5925-00-691-2434
NSN 2925-00-444-1186
NSN 5835-00-262-6146