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 5999-01-420-3453
NSN 5905-01-452-9458
NSN 6610-01-099-9710
NSN 5930-01-642-8388
NSN 6320-01-354-6204
NSN 6220-00-052-0700
NSN 5930-01-101-4727
NSN 5920-01-303-5951
NSN 6110-00-150-2014
NSN 5925-01-577-5546
NSN 5996-01-361-4430
NSN 5895-01-424-3326