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 6610-01-347-3397
NSN 5895-01-245-1323
NSN 5950-01-559-6517
NSN 6645-00-641-3202
NSN 6320-01-429-9871
NSN 5999-01-426-2044
NSN 5975-01-353-4844
NSN 6135-01-322-4655
NSN 5998-00-223-9806
NSN 6130-01-305-9126
NSN 5945-01-136-8746
NSN 5996-01-170-1915