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 6130-01-221-9469
NSN 6610-01-086-1252
NSN 2925-01-177-1598
NSN 5945-00-176-4750
NSN 6135-00-027-3914
NSN 6240-00-689-8504
NSN 6610-01-057-3408
NSN 7035-00-281-4082
NSN 5925-01-230-6513
NSN 5996-00-149-1287
NSN 5998-01-322-4648
NSN 5905-00-103-7666