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 6220-01-101-7317
NSN 5905-00-967-5721
NSN 6685-01-106-3210
NSN 6685-01-391-7560
NSN 5905-01-025-4348
NSN 6220-00-379-4044
NSN 5895-00-564-2892
NSN 6130-01-337-2644
NSN 6130-00-575-4091
NSN 5935-00-961-8283
NSN 5950-01-631-7950
NSN 2925-01-565-6410