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 6105-01-036-8587
NSN 6220-01-415-7889
NSN 5996-00-200-5610
NSN 2925-01-285-7163
NSN 6240-01-064-9727
NSN 5990-00-698-3963
NSN 5920-00-140-8912
NSN 5975-01-360-6175
NSN 5905-01-536-2684
NSN 6145-01-437-9078
NSN 5930-00-318-2359
NSN 2925-00-063-5898