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 6650-01-079-2887
NSN 6645-01-496-5694
NSN 6685-01-018-4439
NSN 6620-01-349-4469
NSN 6610-01-398-8092
NSN 6645-01-320-4138
NSN 5905-00-471-6341
NSN 5996-00-550-3654
NSN 5996-01-188-2039
NSN 6650-01-452-8302
NSN 5985-01-464-4499
NSN 2925-01-411-4666