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 6110-01-212-9568
NSN 6320-01-607-1491
NSN 5835-01-107-8600
NSN 5910-00-948-4608
NSN 6685-01-041-4407
NSN 5920-00-232-3699
NSN 2925-01-649-7543
NSN 6620-01-067-5670
NSN 6240-01-633-9357
NSN 5965-01-391-1703
NSN 5895-00-532-6008
NSN 5996-00-313-9180