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 5910-00-910-7409
NSN 5975-01-200-7710
NSN 6240-00-275-1950
NSN 6685-01-317-8067
NSN 5895-01-105-8336
NSN 5990-00-925-6614
NSN 5950-00-950-3862
NSN 5950-01-424-7267
NSN 6645-00-684-3424
NSN 6220-00-728-9536
NSN 5950-01-246-7757
NSN 5998-01-561-7945