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 2925-01-658-4470
NSN 5985-00-069-6570
NSN 6145-00-596-8447
NSN 5985-01-627-2578
NSN 5996-00-086-9352
NSN 6130-01-079-3712
NSN 5996-01-551-2033
NSN 6135-01-322-4655
NSN 5996-01-305-3342
NSN 5945-00-046-4593
NSN 5925-01-252-0830
NSN 2925-01-127-0167