1. Technical Drawing

Note: The MSS SP 43 stub end is short pattern. It can be used with lap joint flanges or slip on flanges, depending on which the radius of fillet may differ.

2. Dimensions of MSS SP 43 Stub Ends and Caps

NPS	O.D	E	F	G	Ra	Rb
1/2	0.84	1.00	2.00	1.38	0.12	0.03
3/4	1.05	1.00	2.00	1.69	0.12	0.03
1	1.32	1.50	2.00	2.00	0.12	0.03
1-1/4	1.66	1.50	2.00	2.50	0.19	0.03
1-1/2	1.90	1.50	2.00	2.88	0.25	0.03
2	2.38	1.50	2.50	3.62	0.31	0.03
2-1/2	2.88	1.50	2.50	4.12	0.31	0.03
3	3.50	2.00	2.50	5.00	0.38	0.03
3-1/2	4.00	2.50	3.00	5.50	0.38	0.03
4	4.50	2.50	3.00	6.19	0.44	0.03
5	5.56	3.00	3.00	7.31	0.44	0.06
6	6.62	3.50	3.50	8.50	0.50	0.06
8	8.62	4.00	4.00	10.62	0.50	0.06
10	10.75	5.00	5.00	12.75	0.50	0.06
12	12.75	6.00	6.00	15.00	0.50	0.06
14	14.00	6.50	6.00	16.25	0.50	0.06
16	16.00	7.00	6.00	18.50	0.50	0.06
18	18.00	8.00	6.00	21.00	0.50	0.06
20	20.00	9.00	6.00	23.00	0.50	0.06
24	24.00	10.50	6.00	27.25	0.50	0.06

*All dimensions are in inch unit. T: the lap thickness, shall not be less than nominal pipe wall thickness.
*E: cap length; F: stub end length; G: diameter of lap.
*A: radius of fillet if used with lap joint flange; B: radius of fillet if used with slip on flange.

3. Tolerances of Lap Joint Stub Ends & Caps

NPS	Fillet of Radius of Lap	Outside Diameter of Lap
1/2~1-1/2	+0.00 -0.03	+0.00 -0.03
2~3-1/2	+0.00 -0.03	+0.00 -0.03
4	+0.00 -0.03	+0.00 -0.03
5~8	+0.00 -0.06	+0.00 -0.03
10~18	+0.00 -0.06	+0.00 -0.06
20~24	+0.00 -0.06	+0.00 -0.06

*All dimensions are in inch unit. Tolerances for lap joint stub ends.

NPS	1/2~1-1/2	2~3-1/2	4	5~8	10~18	20~24
Tolerance of Overall Length	± 0.12	± 0.12	± 0.12	± 0.25	± 0.25	± 0.25

*All dimensions are in inch unit. Tolerances for caps.

See more technical specifications of MSS SP 43.