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 6110-00-565-0668
NSN 6645-01-156-4330
NSN 6135-01-282-4326
NSN 5960-01-004-3994
NSN 6645-00-088-4079
NSN 7035-00-585-2113
NSN 5985-01-433-2077
NSN 6610-01-633-8931
NSN 6145-01-648-4219
NSN 6145-01-623-5619
NSN 5910-01-364-0979
NSN 6620-00-325-4693