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 5998-01-195-7556
NSN 5975-00-644-4972
NSN 5895-01-530-8914
NSN 6685-01-514-0431
NSN 5999-01-191-4476
NSN 5935-01-228-9727
NSN 5855-00-079-2370
NSN 5935-01-533-9088
NSN 6240-01-240-7529
NSN 2925-00-860-3652
NSN 5975-01-197-7065
NSN 5998-01-452-5061