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 6610-00-292-9895
NSN 5915-01-234-2371
NSN 5985-00-144-8170
NSN 6240-00-826-8426
NSN 6220-01-650-9233
NSN 6320-00-886-9771
NSN 6110-01-307-1390
NSN 6240-01-026-0032
NSN 5920-01-302-2845
NSN 5990-00-464-6385
NSN 5930-00-661-2280
NSN 6610-01-384-1587