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 6145-00-821-9040
NSN 5998-01-158-5970
NSN 5985-00-338-9645
NSN 6110-01-480-7224
NSN 5996-01-010-3816
NSN 6130-01-627-9734
NSN 5905-01-475-0975
NSN 7035-01-330-6768
NSN 5915-01-568-9240
NSN 5895-00-152-5035
NSN 5920-00-137-1135
NSN 5925-00-186-8669