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 5935-00-132-4396
NSN 6105-01-281-4667
NSN 6645-01-162-8023
NSN 6685-01-363-2765
NSN 5985-01-399-7516
NSN 5895-00-932-1577
NSN 5915-01-450-3167
NSN 6130-01-059-5738
NSN 5975-01-182-9733
NSN 5975-00-008-4660
NSN 5998-01-384-5088
NSN 5895-01-634-0630