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 5915-01-176-7004
NSN 6650-00-671-5106
NSN 5945-01-487-4127
NSN 7035-00-803-3056
NSN 5935-01-474-5095
NSN 5920-01-065-0395
NSN 6130-00-923-8467
NSN 6645-00-066-6868
NSN 6610-00-785-4054
NSN 5895-00-443-6237
NSN 5895-00-082-4269
NSN 5910-01-488-9342