PART NO.THREAD AGGAUGE SEALHEX 1HEX 2HL
20.21.331/4 BSPM16 x 2NBR 0-RING0.750.75--2.20
20.21.341/2 BSPM16 x 2DKI METAL RING1.060.75--2.40
20.21.431/4 NPTM16 x 2TAPER0.750.75--2.20
20.21.33/901/4 BSPM16 x 2NBR 0-Ring0.750.751.701.80
20.21.34/901/2 BSPM16 x 2DKI METAL RING1.060.753.101.80
20.21.43/901/4 NPTM16 x 2TAPER0.750.751.701.80
All dimensions are in inches, except as noted.