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 5950-00-243-6875
NSN 6220-01-123-7796
NSN 6610-01-516-7278
NSN 6110-00-996-3698
NSN 6130-01-216-6401
NSN 5990-01-097-4721
NSN 6145-01-250-0689
NSN 2925-00-983-7521
NSN 5945-00-218-0012
NSN 5998-01-216-8425
NSN 6650-00-221-7119
NSN 5910-00-005-8924