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 5895-01-630-8165
NSN 6650-01-045-5494
NSN 6620-01-512-2016
NSN 6110-01-334-8371
NSN 5985-00-020-2990
NSN 5998-01-121-3081
NSN 5996-01-628-8624
NSN 6145-01-211-9798
NSN 6320-01-284-4508
NSN 5975-00-553-7151
NSN 6685-01-129-4815
NSN 6130-01-162-9624