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 5910-00-806-6033
NSN 5935-01-336-8552
NSN 6685-00-038-7886
NSN 5996-01-145-6557
NSN 5855-00-004-0904
NSN 5925-00-584-7189
NSN 6320-01-029-4220
NSN 5990-01-170-6081
NSN 5985-00-799-3572
NSN 2925-01-654-1164
NSN 6110-00-005-7878
NSN 5999-00-498-0726