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 5999-01-468-6805
NSN 5999-01-235-9285
NSN 7035-01-454-3284
NSN 6620-01-163-3329
NSN 6145-00-281-8161
NSN 6645-00-240-9762
NSN 6645-00-349-9336
NSN 6620-01-065-4527
NSN 5975-01-124-8860
NSN 6240-01-444-1393
NSN 5855-01-074-3336
NSN 5996-00-189-2322