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 5895-01-179-8649
NSN 6650-01-129-8343
NSN 6620-01-500-3660
NSN 5975-00-732-7911
NSN 6610-00-256-8006
NSN 2925-00-233-5644
NSN 6685-01-393-4025
NSN 6110-01-466-8839
NSN 6220-01-265-2705
NSN 5945-01-290-3299
NSN 6645-00-243-9470
NSN 5996-01-167-8914