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 5895-01-032-2296
NSN 6645-00-739-6718
NSN 6135-00-503-7213
NSN 6130-00-479-0461
NSN 6685-00-953-9889
NSN 6145-01-660-5814
NSN 5999-00-289-1472
NSN 7035-01-307-5366
NSN 6110-01-027-2853
NSN 5835-00-137-7945
NSN 6610-00-794-7267
NSN 4140-00-246-4969