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 5965-01-479-9155
NSN 6620-01-268-9693
NSN 6110-01-265-6017
NSN 5965-01-005-0341
NSN 5990-01-190-8223
NSN 5945-00-804-4753
NSN 6130-01-474-5190
NSN 5930-01-180-9766
NSN 5975-01-011-0004
NSN 6110-00-450-7232
NSN 5990-00-518-0684
NSN 6145-01-420-8470