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 5910-00-895-3566
NSN 5975-01-022-5128
NSN 5920-00-170-9081
NSN 6130-01-025-6770
NSN 5998-01-272-6302
NSN 5945-01-390-2021
NSN 6110-01-212-5595
NSN 5950-01-281-8476
NSN 5950-00-516-5379
NSN 5996-01-051-9430
NSN 4140-00-570-6545
NSN 5915-01-624-3709