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 5925-01-464-2734
NSN 6105-00-246-5311
NSN 6105-00-770-0161
NSN 6130-00-991-0566
NSN 5925-01-211-7745
NSN 5925-00-721-3206
NSN 5965-01-439-0793
NSN 6135-01-260-7180
NSN 5895-01-360-7667
NSN 5975-01-090-5174
NSN 6685-00-377-2198
NSN 5945-01-329-4646