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 5895-01-498-5236
NSN 6135-01-606-0596
NSN 5910-01-432-2825
NSN 6220-01-387-6332
NSN 6645-01-428-3576
NSN 6130-01-064-8964
NSN 5930-01-024-9719
NSN 6105-01-061-0124
NSN 5915-00-281-8175
NSN 6650-01-220-3842
NSN 6620-00-043-6082
NSN 5975-01-487-5954