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 5855-00-973-5717
NSN 6620-01-062-2505
NSN 6150-01-061-1240
NSN 5895-01-514-8369
NSN 5905-01-175-3882
NSN 5895-00-179-8608
NSN 5920-00-076-9889
NSN 6240-01-633-9357
NSN 5915-01-369-4719
NSN 6610-00-273-9019
NSN 6610-01-598-3036
NSN 5905-01-269-0308