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 6130-00-133-3521
NSN 6220-01-113-3257
NSN 5965-00-463-3900
NSN 6130-00-277-7321
NSN 5985-01-506-3800
NSN 5985-00-007-2654
NSN 6610-01-653-8859
NSN 5996-01-557-1996
NSN 6320-00-925-0558
NSN 5910-01-094-7391
NSN 6220-01-542-0929
NSN 5965-00-296-9994