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 5855-01-424-2287
NSN 6130-01-111-4065
NSN 6620-00-153-0982
NSN 6145-00-296-0085
NSN 5920-01-123-8148
NSN 5998-01-434-9111
NSN 5905-01-222-0750
NSN 5998-01-237-2541
NSN 5996-00-061-0336
NSN 7035-00-358-0470
NSN 5985-01-356-4435
NSN 5925-01-216-5226