DIN 3852 form a Chart

Date:Jun 01, 2019

The male DIN 3852 form A & B couplings will mate with the female DIN coupling.

The male and female form A & B couplings have straight threads. Sheet 1 refers to straight metric threads, and sheet 2 refers to straight Whitworth threads. The seal occurs when the ring seal (Type A) or the face seal (Type B) mates with the face of the female port.

These are two series of DIN 3852 form A & B couplings, the light (L) and the heavy (S) series.

DIN_3852_Form_A DIN_3852_Form_B

Series	Tube O.D. mm	Male Metric Thread Parallel DIN 3852 Type A & B Sheet 1	Male Whitworth Thread Parallel DIN 3852 Type A & B Sheet 2
Metric Thread Size	Thread O.D. mm	A mm	B mm	C mm	Whitworth Thread Size	Thread O.D. in	A mm	B mm	C mm
L Light	6	10x1	10	14	1.5	8	1/8-28	3/8	14	1.5	8
8	12x1.5	12	17	2.0	12	1/4-19	1/2	17	2.0	12
10	14x1.5	14	19	2.0	12	1/4-19	1/2	19	2.0	12
12	16x1.5	16	21	2.5	12	3/8-19	21/32	21	2.5	12
15	18x1.5	18	23	2.5	12	1/2-14	13/16	23	2.5	12
18	22x1.5	22	27	3.0	14	1/2-14	13/16	27	3.0	14
22	26x1.5	26	31	3.0	16	3/4-14	11/32	31	3.0	16
28	33x2	33	39	3.0	18	1-11	15/16	39	3.0	18
35	42x2	42	49	3.0	20	11/4-11	121/32	49	3.0	20
42	48x2	48	55	3.0	22	11/2-11	17/8	55	3.0	22
S Heavy	6	12x1.5	12	17	2.0	12	1/4-19	1/2	17	2.0	12
8	14x1.5	14	19	2.0	12	1/4-19	1/2	19	2.0	12
10	16x1.5	16	21	2.5	12	3/8-19	21/32	21	2.5	12
12	18x1.5	18	23	2.5	12	3/8-19	21/32	23	2.5	12
14	20x1.5	20	25	3.0	14	1/2-14	13/16	25	3.0	14
16	22x1.5	22	27	3.0	14	1/2-14	13/16	27	3.0	14
20	27x2	27	32	3.0	16	3/4-14	11/32	32	3.0	16
25	33x2	33	39	3.0	18	1-11	15/16	39	3.0	18
30	42x2	42	49	3.0	20	11/4-11	121/32	49	3.0	20
38	48x2	48	55	3.0	22	11/2-11	17/8	55	3.0	22

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