Grade TT8010 TT9030 NPTF (NATIONAL PIPE THREAD - DRY SEAL) INTERNAL - FULL PROFILE (ANSI/ASME B1.20.3-1976) Regular Type Application: Steam, Gas and Water Pipes *Right hand shown Designation ThreadType Hand InsertType IC TPI L X Y(inch)(inch)(inch)(inch) 06IL27NPTF Internal Left Regular 0.156 27 0.236 0.028 0.024 08IL18NPTF Internal Left Regular 0.188 18 0.315 0.024 0.024 08IL27NPTF Internal Left Regular 0.188 27 0.315 0.024 0.024 11IL14NPTF Internal Left Regular 0.250 14 0.433 0.031 0.039 11IL18NPTF Internal Left Regular 0.250 18 0.433 0.031 0.039 11IL27NPTF Internal Left Regular 0.250 27 0.433 0.028 0.028 16IL11.5NPTF Internal Left Regular 0.375 11.5 0.630 0.043 0.059 16IL8NPTF Internal Left Regular 0.375 8 0.630 0.051 0.071 16IL14NPTF Internal Left Regular 0.375 14 0.630 0.035 0.047 16IL18NPTF Internal Left Regular 0.375 18 0.630 0.031 0.039 16IL27NPTF Internal Left Regular 0.375 27 0.630 0.028 0.028 06IR27NPTF Internal Right Regular 0.156 27 0.236 0.028 0.024 08IR18NPTF Internal Right Regular 0.188 18 0.315 0.024 0.024 08IR27NPTF Internal Right Regular 0.188 27 0.315 0.024 0.024 11IR14NPTF Internal Right Regular 0.250 14 0.433 0.031 0.039 11IR18NPTF Internal Right Regular 0.250 18 0.433 0.031 0.039 11IR27NPTF Internal Right Regular 0.250 27 0.433 0.028 0.028 16IR8NPTF Internal Right Regular 0.375 8 0.630 0.051 0.071 16IR11.5NPTF Internal Right Regular 0.375 11.5 0.630 0.043 0.059 16IR14NPTF Internal Right Regular 0.375 14 0.630 0.035 0.047 16IR18NPTF Internal Right Regular 0.375 18 0.630 0.031 0.039 16IR27NPTF Internal Right Regular 0.375 27 0.630 0.028 0.028 =P =M =K =N =S =H 1221