(MSS SP-43 1986 Edition)Dimensions in Inches
Norminal
pipe size 		AllFittings 90 Bbows
45 Bbows
Tees 		Reducers
Lap-Joint
Stub EndS 		180 Retums Caps Lap-Jiont Stub Ends
Outside
Diameter
at Welding
End 		Wall
Thickness 		Center-to-
End
Dimension
A B C M 		Overall
Length
F H 		Center-to-
Center
Dimension P 		Back-to-Face
Dimension K 		Algnment
of End
U 		Over
Length
E 		Fillet
Radlus
of Lap A 		Outside
Djiameter of Lap G
1/2 to
1-1/2 		±0.03 Not less
than 87.5%
of nominal
thickness 		±0.06 ±0.06 ±0.25 ±0.25 ±0.03 ±0.12 +0
±0.3		 +0
±0.3
2 to
3-1/2		 ±0.03 ±0.06 ±0.06 ±0.25 ±0.25 ±0.03 ±0.12 +0
±0.3		 +0
±0.3
4
±0.03
±0.06
±0.06
±0.25
±0.25
±0.03
±0.12
+0
±0.6
+0
±0.3
6 to 8
+0.06
-0.03
±0.06
±0.06
±0.25
±0.25
±0.03
±0.25
+0
±0.6
+0
±0.3
10 to 18
+0.09
-0.03
±0.09
±0.09
±0.38
±0.25
±0.06
±0.25
+0
±0.6
+0
±0.6
20 to 24
+0.12
-0.03
±0.09
±0.09
±0.38
±0.25
±0.06
±0.25
+0
±0.6
+0
±0.6


(ANSI B16.9 - 1986)Dimensions in Inches
All Fittings
90o Bbows
45o Bbows
Tees 		Reducers
Lap-Joint
Stub EndS		Caps180o Retums
Lap-Jiont Stub Ends
Normianl
pipe
size		Outside
Diameter
at Welding
End 		Inside Diameter
at End		Wall
Thick-ness 		Center-to-End Dimension
A B C D 		Overall Length
F H		Overall
Length
E 		Center-to-
Center Dimension
P 		Back-to-
Face Dimension
K 		Algnment
of End
U 		Outside
Diameter
of Lap
G 		Thick- ness
of Lap
T 		Fillet
Radlus
of Lap
R
1/2 to
1-1/2 		+0.06
-0.03 		±0.03 Not less
than 87.5%
of nominal
thickness		±0.06±0.06±0.12±0.06±0.12±0.25±0.25±0.03+0
-0.03		+0.06
-0		+0
-0.03
3 to
3-1/2		 ±0.06 ±0.06 ±0.06 ±0.06 ±0.12 ±0.06 ±0.12 ±0.25 ±0.25 ±0.03 +0
-0.03 		+0.06
-0		 +0
-0.03
4 ±0.06 ±0.06 ±0.06 ±0.06 ±0.12 ±0.06 ±0.12 ±0.25 ±0.25 ±0.03 +0
-0.03		 +0.06
-0		 +0
-0.06
5 to 8 +0.09
-0.06		 ±0.12 ±0.06 ±0.06 ±0.25 ±0.06 ±0.25 ±0.25 ±0.25 ±0.03 +0
-0.03		 +0.06
-0		 +0
-0.06
10 to 18 +0.16
-0.12		 ±0.19 ±0.09 ±0.09 ±0.25 ±0.09 ±0.25 ±0.38 ±0.25 ±0.06 +0
-0.06		 +0.06
-0		 +0
-0.06
20 to 24 +0.25
-0.19		 ±0.19 ±0.09 ±0.09 ±0.25 ±0.09 ±0.25 ±0.38 ±0.25 ±0.06 +0
-0.06		 +0.06
-0		 +0
-0.06
26 to 30 +0.25
-0.19		 ±0.19 ±0.12 ±0.19 ±0.38 ±0.19 ±0.38 - - - - - -
32 to 48 +0.25
-0.19		 ±0.19 ±0.09 ±0.19 ±0.38 ±0.19 ±0.38 - - - - - -





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