Straight Thread O-Ring Boss Port Dimensions (Page 2 of 2)

Provided for reference purposes only. Accepted, published, industry-standard tables take precedence over the data presented herein.

Reference Dimensions
(5/7/04)

See columns for tubing OD, thread size, and dimensions D and J.

 R 
e
f
e
r
e
n
c
e		 K O
Min Dia 		P(4)
Min 		S(2,3)
Max 		U(5)
Dia 		Y(3) Z
±1
deg
+0.015
-0.000
in 		+0.4
-0.0
mm 		in mm in mm in mm +0.005
-0.000
in 		+0.13
-0.00
mm 		in mm
A 0.074 1.9 0.438 11 0.468 12.0 0.062 1.6 0.358 9.1 0.672 17 12
B 0.074 1.9 0.500 13 0.468 12.0 0.062 1.6 0.421 10.7 0.750 19 12
                           
C 0.093 2.4 0.563 15 0.547 14.0 0.062 1.6 0.487 12.4 0.828 21 12
D 0.093 2.4 0.625 16 0.547 14.0 0.062 1.6 0.550 14.0 0.906 23 12
E 0.097 2.5 0.688 18 0.609 15.5 0.062 1.6 0.616 15.6 0.969 25 12
F 0.100 2.5 0.875 22 0.688 17.5 0.094 2.4 0.811 20.6 1.188 30 15
G 0.100 2.5 1.000 26 0.781 20.0 0.094 2.4 0.942 23.9 1.344 34 15
H 0.130 3.3 1.250 32 0.906 23.0 0.094 2.4 1.148 29.2 1.625 41 15
I 0.130 3.3 1.375 35 0.906 23.0 0.094 2.4 1.273 32.3 1.765 45 15
J 0.130 3.3 1.500 38 0.906 23.0 0.125 3.2 1.398 35.5 1.910 49 15
K 0.132 3.3 1.875 48 0.906 23.0 0.125 3.2 1.713 43.5 2.270 58 15
L 0.132 3.3 2.125 54 0.906 23.0 0.125 3.2 1.962 49.8 2.560 65 15
M 0.132 3.3 2.750 70 0.906 23.0 0.125 3.2 2.587 65.7 3.480 88 15

Notes:

  1. Diameter U shall be concentric with thread pitch diameter within 0.005 in (0.13 mm) FIM, and shall be free from longitudinal and spiral tool marks. Annular tool marks up to marks up to 100 µin (2.5 µm max shall be permissible).
  2. Maximum recommended spotface depth to permit sufficient wrench grip for proper tightening of the fitting or locknut.
  3. If face of boss is on a machined surface, dimensions Y and S need not apply.
  4. Tap drill depths given require use of bottoming taps to produce the specified full thread lengths. Where standard taps are used, the tap drill depths must be increased accordingly.
  5. Nominal tubing OD is shown for the standard in sizes and the conversion to equivalent millimeter sizes. Figures are for reference only, as any boss can be used for a tubing size depending upon other design criteria.

 

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