Item must comply with requirements of defense supply center philadelphia production standard no. Po0036nrp
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 5905-01-339-5408
NSN 5920-01-411-5512
NSN 2925-01-355-3866
NSN 6645-00-943-9063
NSN 5985-00-233-6740
NSN 5925-01-141-6492
NSN 5935-01-418-5649
NSN 6105-00-329-3129
NSN 2925-01-562-1663
NSN 5920-01-012-9926
NSN 5999-01-117-6466
NSN 5990-00-067-6791