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 6320-00-456-0836
NSN 6685-01-067-3743
NSN 5855-01-464-3152
NSN 6620-01-253-0374
NSN 5998-01-534-4460
NSN 6645-00-252-5798
NSN 6110-01-016-0887
NSN 5895-01-026-5439
NSN 5960-01-481-8051
NSN 5930-01-097-7070
NSN 5930-01-472-3953
NSN 5999-00-468-6531