AN910 Rev 11
K
A
B
C
Dash
Diameter
Pipe thread
+.031 (0.79)
inches (mm)
number
inches (mm)
SAE-AS71051
inches (mm)
±.004
+.000
1
1/8-27 ANPT
.844 (21.44)
.625 (15.88)
.327 (8.31)
(0.10)
-.016 (0.41)
±.004
+.000
1/4-18 ANPT
2
1.125 (28.58)
.813 (20.65)
.423 (10.74)
(0.10)
-.019 (0.48)
±.004
+.000
3/8-18 ANPT
3
1.219 (30.96)
.938 (23.83)
.557 (14.15)
(0.10)
-.028 (0.71)
±.005
+.000
1/2-14 ANPT
4
1.594 (40.89)
1.188 (30.18)
.688 (17.48)
(0.13)
-.034 (0.86)
±.005
+.000
3/4-14 ANPT
6
1.625 (41.28)
1.375 (34.93)
.897 (22.78)
(.013)
-.040 (1.02)
±.016
+.000
1-11.5 ANPT
8
1.938 (49.23)
1.750 (44.45)
1.128 (28.65)
(0.41)
-.037 (0.94)
±.020
+.000
1/ 1/4-11.5 ANPT
10
1.938 (49.23)
2.125 (53.98)
1.471 (37.36)
(0.51)
-.036 (0.91)
P
Z
Dash
Diameter
±.016 (0.41)
number
±.016 (0.41)
inches (mm)
inches (mm)
1
.578 (14.68)
.313 (7.95)
2
.781 (19.84)
.438 (11.13)
3
.922 (23.42)
.469 (11.91)
4
1.156 (29.36)
.641 (16.28)
6
1.359 (34.52)
.641 (16.28)
8
1.688 (42.88)
.781 (19.84)
10
1.094 (27.79)
.781 (19.84)
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Break sharp edges .and remove all hanging burrs and slivers
4. Machined surfaces shall be finished to 125µ in Ra, forged surfaces shall be 250µ inches Ra, unless
otherwise specified on the figures. Surface finish shall be in accordance with ASME B46.1.
5. For design features purposes, this standard takes precedence over documents referenced herein.
6. Referenced documents shall be of the issue in effect on date of invitation for bid.
FIGURE 1. Coupling pipe dimensions and configuration - Continued.
REQUIREMENTS:
The Coupling pipe dimensions and configuration shall be in accordance with figure 1 and table I.
Materials and finishes shall be in accordance with SAE-AS4842, see table I for material code letters.
2
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