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 5998-00-954-8265
NSN 5905-01-135-4023
NSN 6685-00-296-0392
NSN 5855-01-049-5354
NSN 5996-01-107-2577
NSN 6130-00-826-8284
NSN 5925-00-792-9073
NSN 5990-01-386-5561
NSN 5945-00-691-5194
NSN 6650-01-025-8803
NSN 7035-01-658-0910
NSN 5960-01-573-6483