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 6220-01-085-0841
NSN 5910-00-119-4498
NSN 6685-00-276-9889
NSN 5965-01-107-8549
NSN 6620-01-401-5356
NSN 5910-01-089-6671
NSN 2925-01-400-2286
NSN 6240-01-085-3403
NSN 5975-00-051-3994
NSN 5905-01-326-9814
NSN 5930-01-386-5189
NSN 6110-00-913-0999