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 6105-01-600-0366
NSN 6135-01-415-1163
NSN 6645-01-240-4640
NSN 6240-01-462-5433
NSN 6130-01-307-7312
NSN 2925-01-418-8106
NSN 5835-01-364-6830
NSN 7035-00-076-4097
NSN 5945-01-126-8209
NSN 5996-01-382-8891
NSN 5915-00-989-9632
NSN 5975-01-431-8520