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 5905-00-097-9536
NSN 6130-01-152-1189
NSN 6685-01-024-9508
NSN 5998-01-040-7875
NSN 5910-00-905-6425
NSN 5965-00-247-0727
NSN 5960-00-813-4520
NSN 5905-01-476-0815
NSN 5930-01-086-1579
NSN 5925-01-232-0246
NSN 6135-00-182-7008
NSN 5985-01-153-2657