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 5895-01-451-3866
NSN 6220-00-983-4362
NSN 5915-00-528-1192
NSN 4140-01-024-9414
NSN 6685-01-018-0079
NSN 5960-01-505-2426
NSN 4140-01-249-7948
NSN 5915-01-076-9099
NSN 5905-01-047-0783
NSN 6145-01-421-8408
NSN 6220-00-218-0857
NSN 5996-01-303-8361