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 5835-01-068-4043
NSN 6685-01-252-6692
NSN 5835-00-302-5296
NSN 5950-00-256-0825
NSN 5855-00-361-0167
NSN 5895-01-064-8528
NSN 5998-01-107-3877
NSN 4140-01-420-7269
NSN 2925-00-263-2714
NSN 5990-01-633-9503
NSN 5960-01-093-6981
NSN 6220-00-176-0273