Threaded Fitting Dimensions: Elbows, Tees, and Crosses

Discover the essential dimensions for Threaded Fitting in this comprehensive guide. We cover everything you need to know about elbows, tees, and cross dimensions, ensuring that your projects meet industry standards. Whether you’re working with a 90-degree elbow, tee, or a cross, this resource provides accurate and reliable measurements for all your Forged Fitting needs.

Threaded Dimensions

Elbow 90°

Dimensions Threaded Elbows 90°/45° ASME B16.11

Class 2000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	33	3.18	28	22
3/4	12.7	13.9	38	3.18	33	25
1	14.7	17.3	46	3.68	38	28
1.1/4	17	18	56	3.89	44	33
1.1/2	17.8	18.4	62	4.01	51	35
2	19	19.2	75	4.27	60	43
2.1/2	23.6	28.9	92	5.61	76	52
3	25.9	30.5	109	5.99	86	64
4	27.7	33	146	6.55	106	79

Class 3000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	38	4.09	33	25
3/4	12.7	13.9	46	4.32	38	28
1	14.7	17.3	56	4.98	44	33
1.1/4	17	18	62	5.28	51	35
1.1/2	17.8	18.4	75	5.56	60	43
2	19	19.2	84	7.14	64	44
2.1/2	23.6	28.9	102	7.65	83	52
3	25.9	30.5	121	8.84	95	64
4	27.7	33	152	11.18	114	79

Class 6000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	46	8.15	38	28
3/4	12.7	13.9	56	8.53	44	33
1	14.7	17.3	62	9.93	51	35
1.1/4	17	18	75	10.59	60	43
1.1/2	17.8	18.4	84	11.07	64	44
2	19	19.2	102	12.09	83	52
2.1/2	23.6	28.9	121	15.29	95	64
3	25.9	30.5	146	16.64	106	79
4	27.7	33	152	18.67	114	79

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Tee

Dimensions Threaded Tees & Crosses ASME B16.11

Class 2000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	33	28	3.18
3/4	12.7	13.9	38	33	3.18
1	14.7	17.3	46	38	3.68
1.1/4	17	18	56	44	3.89
1.1/2	17.8	18.4	62	51	4.01
2	19	19.2	75	60	4.27
2.1/2	23.6	28.9	92	76	5.61
3	25.9	30.5	109	86	5.99
4	27.7	33	146	106	6.55

Class 3000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	38	33	4.09
3/4	12.7	13.9	46	38	4.32
1	14.7	17.3	56	44	4.98
1.1/4	17	18	62	51	5.28
1.1/2	17.8	18.4	75	60	5.56
2	19	19.2	84	64	7.14
2.1/2	23.6	28.9	102	83	7.65
3	25.9	30.5	121	95	8.84
4	27.7	33	152	114	11.18

Class 6000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	46	38	8.15
3/4	12.7	13.9	56	44	8.53
1	14.7	17.3	62	51	9.93
1.1/4	17	18	75	60	10.59
1.1/2	17.8	18.4	84	64	11.07
2	19	19.2	102	83	12.09
2.1/2	23.6	28.9	121	95	15.29
3	25.9	30.5	146	106	16.64
4	27.7	33	152	114	18.67

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Cross

Dimensions Threaded Tees & Crosses ASME B16.11

Class 2000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	33	28	3.18
3/4	12.7	13.9	38	33	3.18
1	14.7	17.3	46	38	3.68
1.1/4	17	18	56	44	3.89
1.1/2	17.8	18.4	62	51	4.01
2	19	19.2	75	60	4.27
2.1/2	23.6	28.9	92	76	5.61
3	25.9	30.5	109	86	5.99
4	27.7	33	146	106	6.55

Class 3000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	38	33	4.09
3/4	12.7	13.9	46	38	4.32
1	14.7	17.3	56	44	4.98
1.1/4	17	18	62	51	5.28
1.1/2	17.8	18.4	75	60	5.56
2	19	19.2	84	64	7.14
2.1/2	23.6	28.9	102	83	7.65
3	25.9	30.5	121	95	8.84
4	27.7	33	152	114	11.18

Class 6000
NPS	Min Length of Thread		Outside Dia of Band D	Center to End A	MinWT
NPS	B	J	Outside Dia of Band D	Center to End A	MinWT
1/2	10.9	13.6	46	38	8.15
3/4	12.7	13.9	56	44	8.53
1	14.7	17.3	62	51	9.93
1.1/4	17	18	75	60	10.59
1.1/2	17.8	18.4	84	64	11.07
2	19	19.2	102	83	12.09
2.1/2	23.6	28.9	121	95	15.29
3	25.9	30.5	146	106	16.64
4	27.7	33	152	114	18.67

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Elbow 45°

Dimensions Threaded Elbows 90°/45° ASME B16.11

Class 2000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	33	3.18	28	22
3/4	12.7	13.9	38	3.18	33	25
1	14.7	17.3	46	3.68	38	28
1.1/4	17	18	56	3.89	44	33
1.1/2	17.8	18.4	62	4.01	51	35
2	19	19.2	75	4.27	60	43
2.1/2	23.6	28.9	92	5.61	76	52
3	25.9	30.5	109	5.99	86	64
4	27.7	33	146	6.55	106	79

Class 3000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	38	4.09	33	25
3/4	12.7	13.9	46	4.32	38	28
1	14.7	17.3	56	4.98	44	33
1.1/4	17	18	62	5.28	51	35
1.1/2	17.8	18.4	75	5.56	60	43
2	19	19.2	84	7.14	64	44
2.1/2	23.6	28.9	102	7.65	83	52
3	25.9	30.5	121	8.84	95	64
4	27.7	33	152	11.18	114	79

Class 6000
NPS	Min Thread Length		Outside Dia	Min WT	Center to End
NPS	B	J	D	G	90° A	45° C
1/2	10.9	13.6	46	8.15	38	28
3/4	12.7	13.9	56	8.53	44	33
1	14.7	17.3	62	9.93	51	35
1.1/4	17	18	75	10.59	60	43
1.1/2	17.8	18.4	84	11.07	64	44
2	19	19.2	102	12.09	83	52
2.1/2	23.6	28.9	121	15.29	95	64
3	25.9	30.5	146	16.64	106	79
4	27.7	33	152	18.67	114	79

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Full-coupling

Dimensions Threaded Full and Half Couplings ASME B16.11

Class 3000
NPS	Length	Outside Dia	Min Thread Length
NPS	A	D	B	J
1/2	48	28	10.9	13.6
3/4	51	35	12.7	13.9
1	60	44	14.7	17.3
1.1/4	67	57	17	18
1.1/2	79	64	17.8	18.4
2	86	76	19	19.2
2.1/2	92	92	23.6	28.9
3	108	108	25.9	30.5
4	121	140	27.7	33

Class 6000
NPS	Length	Outside Dia	Min Thread Length
NPS	A	D	B	J
1/2	48	38	10.9	13.6
3/4	51	44	12.7	13.9
1	60	57	14.7	17.3
1.1/4	67	64	17	18
1.1/2	79	76	17.8	18.4
2	86	92	19	19.2
2.1/2	92	108	23.6	28.9
3	108	127	25.9	30.5
4	121	159	27.7	33

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Cap (End Cap)

Dimensions Threaded End Caps ASME B16.11

Class 3000
NPS	Length	Outside Dia	Min WT	Min Thread Length
NPS	A	D	G	B	J
1/2	32	28	6.4	10.9	13.6
3/4	37	35.	6.4	12.7	13.9
1	41	44	9.7	14.7	17.3
1.1/4	44	57	9.7	17	18
1.1/2	44	64	11.2	17.8	18.4
2	48	76	12.7	19	19.2
2.1/2	60	92	15.7	23.6	28.9
3	65	108	19	25.9	30.5
4	68	140	22.4	27.7	33

Class 6000
NPS	Length	Outside Dia	Min WT	Min Thread Length
NPS	A	D	G	B	J
1/2	33	38	7.9	10.9	13.6
3/4	38	44	7.9	12.7	13.9
1	43	57	11.2	14.7	17.3
1.1/4	46	64	11.2	17	18
1.1/2	48	76	12.7	17.8	18.4
2	51	92	15.7	19	19.2
2.1/2	64	108	19	23.6	28.9
3	68	127	22.4	25.9	30.5
4	75	159	28.4	27.7	33

General notes..

Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.The length of useful thread (Bplus threads with fully formed roots and flat crests) shall not be less than J.

Square head plug

Dimensions Hex & Square & Round Head Plugs ASME B16.11

Hex Plug
NPS	Min Length E	Min Hex Height J	Nominal F
1/2	14	8	22
3/4	16	10	27
1	19	10	35
1.1/4	21	14	44.5
1.1/2	21	16	51
2	22	18	63.5
2.1/2	27	19	76
3	28	21	89
4	32	25	117.5

Square Head Plug
NPS	Min Length E	Min Square Height C	Min Width Flats B
1/2	14	10	14
3/4	16	11	16
1	19	13	21
1.1/4	21	14	24
1.1/2	21	16	28
2	22	18	32
2.1/2	27	19	36
3	28	21	41
4	32	25	65

Round Head Plug
NPS	Min Length A	Nominal Head Dia D	Min Length E
1/2	44	21	14
3/4	44	27	16
1	51	33	19
1.1/4	51	43	21
1.1/2	51	48	21
2	64	60	22
2.1/2	70	73	37
3	70	89	28
4	76	114	32

General notes..· Dimensions are in millimeters unless otherwise indicated.

Hex head plug

Dimensions Hex & Square & Round Head Plugs ASME B16.11

Hex Plug
NPS	Min Length E	Min Hex Height J	Nominal F
1/2	14	8	22
3/4	16	10	27
1	19	10	35
1.1/4	21	14	44.5
1.1/2	21	16	51
2	22	18	63.5
2.1/2	27	19	76
3	28	21	89
4	32	25	117.5

Square Head Plug
NPS	Min Length E	Min Square Height C	Min Width Flats B
1/2	14	10	14
3/4	16	11	16
1	19	13	21
1.1/4	21	14	24
1.1/2	21	16	28
2	22	18	32
2.1/2	27	19	36
3	28	21	41
4	32	25	65

Round Head Plug
NPS	Min Length A	Nominal Head Dia D	Min Length E
1/2	44	21	14
3/4	44	27	16
1	51	33	19
1.1/4	51	43	21
1.1/2	51	48	21
2	64	60	22
2.1/2	70	73	37
3	70	89	28
4	76	114	32

General notes..· Dimensions are in millimeters unless otherwise indicated.

Round head plug

Dimensions Hex & Square & Round Head Plugs ASME B16.11

Hex Plug
NPS	Min Length E	Min Hex Height J	Nominal F
1/2	14	8	22
3/4	16	10	27
1	19	10	35
1.1/4	21	14	44.5
1.1/2	21	16	51
2	22	18	63.5
2.1/2	27	19	76
3	28	21	89
4	32	25	117.5

Square Head Plug
NPS	Min Length E	Min Square Height C	Min Width Flats B
1/2	14	10	14
3/4	16	11	16
1	19	13	21
1.1/4	21	14	24
1.1/2	21	16	28
2	22	18	32
2.1/2	27	19	36
3	28	21	41
4	32	25	65

Round Head Plug
NPS	Min Length A	Nominal Head Dia D	Min Length E
1/2	44	21	14
3/4	44	27	16
1	51	33	19
1.1/4	51	43	21
1.1/2	51	48	21
2	64	60	22
2.1/2	70	73	37
3	70	89	28
4	76	114	32

General notes..· Dimensions are in millimeters unless otherwise indicated.

Hex head bushing

Dimensions Hex Head Bushings ASME B16.11

NPS	Min Length E	Min Hex Height C	Nominal F
1/2	14	5	22
3/4	16	6	27
1	19	6	35
1.1/4	21	7	44.5
1.1/2	21	8	51
2	22	9	63.5
2.1/2	27	10	76
3	28	10	89
4	32	13	117.5

General notes.. · Dimensions are in millimeters unless otherwise indicated. · Cautionary Note Regarding Hex Bushings..Hex head bushings of one-size reduction should not be used in services wherethey might be subject to harmful loads and forces other than internalpressures.

Threaded Dimensions

Class 2000

Class 3000

Class 6000

Class 2000

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