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 5910-00-369-9294
NSN 5965-00-360-9534
NSN 5895-00-787-0239
NSN 6105-01-340-4806
NSN 5835-01-214-5402
NSN 5895-00-042-9397
NSN 5975-01-337-9696
NSN 6110-01-136-3104
NSN 5835-01-060-9491
NSN 5996-01-324-5501
NSN 5990-01-468-1292
NSN 5905-01-487-0768