Rings, Forged and Welded

Size (A) (in.)	Stock No. G-340 Galv.	Stock No. S-340 S.C.	Working Load Limit (lbs.)	Weight Each (lbs.)	Dimensions - B	Dimensions - C	Dimensions - D
5/16	1014057	1014066	2500	0.15	0.5	1.75	1.18
3/8	1014075	1014084	3800	0.23	0.56	1.88	1.38
1/2	1014093	1014100	6500	0.45	0.75	2.38	1.81
5/8	1014119	1014128	9300	0.95	1	3.25	2.32
3/4	1014137	1014146	14000	1.51	1.13	3.5	2.68
7/8	1014155	1014164	12000	2.75	2	5.13	3.75
1	1014173	1014182	15200	3.95	2.25	5.75	4.25
1 1/4	1014191	1014208	26400	7.3	2.5	7	5
1 3/8	1014217	1014226	30000	10.38	2.75	7.75	5.5

Weldless sling links	Stock No.		Dimensions (in.)
Size (A) (in.)	G-341 Galv.	S-341 S.C.	Working Load Limit Single Pull (lbs.)	Weight Each (lbs.)	B	C	D	E	F
3/8	1013897	1013904	1800	0.13	1.13	0.75	3	2.25	0.38
1/2	1013913	1013922	2900	0.55	1.50	1.00	4	3.00	0.5
5/8	1013931	1013940	4200	1.1	1.87	1.25	5	3.75	0.63
3/4	1013959	1013968	6000	1.95	2.25	1.50	6	4.50	0.75
7/8	1013977	1013986	8300	2.78	2.63	1.75	7	5.25	0.88
1	1013995	1014002	10800	4.3	3.00	2.00	8	6.00	1.00
1  1/4	1014011	1014020	16750	8.5	4.00	2.50	10.25	7.50	1.25
1  3/8	1014039	1014048	20500	11.50	4.13	2.75	11.00	8.25	1.38

Weldless rings	S-643 Stock No. S.C.	Working Load Limit Single Pull (lbs.)	Weight Each (lbs.)	Dimensions (in.)
Size (A) (in.)				B	C
7/8 x 4	1013780	7200	2.7	4.00	5.75
7/8 x 5 1/2	1013806	5600	3.4	5.50	7.25
1 x 4	1013824	10800	3.5	4.00	6.00
1 1/8 x 6	1013842	10400	6.5	6.00	8.25
1 1/4 x 5	1013860	17000	7	5.00	7.50
1 3/8 x 6	1013888	19000	10.63	6.00	8.75

R’ numbers of API and ANSI for standard ring-joint flanges

NOMINAL PIPE SIZE	150#	300# 400# 600#	900#	1500#	2500#
.5"	N/A	R-11	R-12	R-12	R-13
.75"	N/A	R-13	R-14	R-14	R-16
1"	R-15	R-16	R-16	R-16	R-18
1.25"	R-17	R-18	R-18	R-18	R-21
1.5"	R-19	R-20	R-20	R-20	R-23
2"	R-22	R-23	R-24	R-24	R-26
2.5"	R-25	R-26	R-27	R-27	R-28
3"	R-29	R-31*	R-31	R-35	R-32
3.5"	R-33	R-34	N/A	N/A	N/A
4"	R-36	R-37	R-37	R-38	R-38
5"	R-40	R-41	R-41	R-44	R-42
6"	R-43	R-45	R-45	R-46	R-47
8"	R-48	R-49	R-49	R-50	R-51
10"	R-52	R-53	R-53	R-54	R-55
12"	R-56	R-57	R-57	R-58	R-59
14" O.D.	R-59	R-61	R-62	R-63	N/A
16" O.D.	R-64	R-65	R-66	R-67	N/A
18" O.D.	R-68	R-69	R-70	R-71	N/A
20" O.D.	R-72	R-73	R-74	R-75	N/A
24" O.D.	R-76	R-77	R-78	R-79	N/A

*With lapped flanges use #R30 instead of #R31​

Thickness chart for Spectacle Blinds Thickness measured in Inches

NOMINAL PIPE SIZE	150#RFRTJ	300# RFRTJ	600#RFRTJ	900#RFRTJ	1500#RFRTJ	2500#RFRTJ
.5"	0.125	0.25	0.25	0.25	0.25	0.375
	N/A	0.625	0.75	0.875	0.875	1
.75"	0.125	0.25	0.25	0.25	0.375	0.375
	N/A	0.75	0.875	0.875	1	1.125
1"	0.125	0.25	0.25	0.25	0.375	0.375
	0.75	0.75	0.875	0.875	1	1.125
1.25"	0.25	0.25	0.375	0.375	0.375	0.5
	0.75	0.875	0.875	1	1	1.375
1.5"	0.25	0.25	0.375	0.375	0.5	0.625
	0.75	0.875	0.875	1	1.125	1.5
2"	0.25	0.375	0.375	0.5	0.5	0.625
	0.75	1	1.125	1.25	1.375	1.625
2.5"	0.25	0.375	0.5	0.5	0.625	0.75
	0.875	1.125	1.25	1.375	1.5	1.875
3"	0.25	0.375	0.5	0.625	0.75	0.875
	0.875	1.125	1.25	1.375	1.75	2
3.5"	0.375	0.5	0.625	N/A	N/A	N/A
	0.875	1.125	1.375	N/A	N/A	N/A
4"	0.375	0.5	0.625	0.75	0.875	1.125
	0.875	1.25	1.375	1.625	1.875	2.5
5"	0.375	0.625	0.75	0.875	1.125	1.375
	1	1.375	1.5	1.75	2.125	2.875
6"	0.5	0.625	0.875	1	1.375	1.625
	1	1.375	1.75	1.875	2.375	3.25
8"	0.5	0.875	1.125	1.375	1.625	2.125
	1.125	1.625	2	2.25	2.875	3.875
10"	0.625	1	1.375	1.625	2	2.625
	1.25	1.75	2.25	2.5	3.25	4.625
12"	0.75	1.125	1.625	1.875	2.375	3.5
	1.375	2	2.5	2.875	4	5.25
14"	0.75	1.25	1.75	2.125	2.625	N/A
	1.375	2.125	2.625	3.25	4.375	N/A
16"	0.875	1.5	2	2.375	3	N/A
	1.5	2.25	2.875	3.625	4.875	N/A
18"	1	1.625	2.125	2.625	3.375	N/A
	1.625	2.375	3.125	4	5.25	N/A
20"	1.125	1.75	2.5	2.875	3.75	N/A
	1.625	2.75	3.5	4.375	5.625	N/A
24"	1.25	2	2.875	3.5	4.375	N/A
	1.875	3.125	4.125	5.25	6.625	N/A

All Spectacle Blind are made from A516-70N material

RTJ
ANSI verses API
600 = 2000
900 = 3000
1500 = 5000