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 6220-00-152-3672
NSN 5925-00-816-9929
NSN 5905-01-458-0590
NSN 5915-01-088-0816
NSN 5975-01-076-2584
NSN 7035-01-011-3760
NSN 5965-01-633-8849
NSN 6645-01-535-7136
NSN 5915-01-603-0012
NSN 6240-01-490-6922
NSN 5855-00-256-5562
NSN 6650-01-192-2340