Rings, Forged and Welded


Crosssection illustration showing the location of dimensions in the product data table.Chain Ring

Size (A) (in.)Stock No. G-340 Galv.Stock No. S-340 S.C.Working Load Limit (lbs.)Weight Each (lbs.)Dimensions - BDimensions - CDimensions - D
5/161014057101406625000.150.51.751.18
3/81014075101408438000.230.561.881.38
1/21014093101410065000.450.752.381.81
5/81014119101412893000.9513.252.32
3/410141371014146140001.511.133.52.68
7/810141551014164120002.7525.133.75
110141731014182152003.952.255.754.25
1 1/410141911014208264007.32.575
1 3/8101421710142263000010.382.757.755.5

Weldless Sling LInkCrosssection illustration showing the location of dimensions in the product data table.

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 RingCrosssection illustration showing the location of dimensions in the product data table.

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 SIZE150#300# 400# 600#900#1500#2500#
.5"N/AR-11R-12R-12R-13
.75"N/AR-13R-14R-14R-16
1"R-15R-16R-16R-16R-18
1.25"R-17R-18R-18R-18R-21
1.5"R-19R-20R-20R-20R-23
2"R-22R-23R-24R-24R-26
2.5"R-25R-26R-27R-27R-28
3"R-29R-31*R-31R-35R-32
3.5"R-33R-34N/AN/AN/A
4"R-36R-37R-37R-38R-38
5"R-40R-41R-41R-44R-42
6"R-43R-45R-45R-46R-47
8"R-48R-49R-49R-50R-51
10"R-52R-53R-53R-54R-55
12"R-56R-57R-57R-58R-59
14" O.D.R-59R-61R-62R-63N/A
16" O.D.R-64R-65R-66R-67N/A
18" O.D.R-68R-69R-70R-71N/A
20" O.D.R-72R-73R-74R-75N/A
24" O.D.R-76R-77R-78R-79N/A

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

Thickness chart for Spectacle Blinds Thickness measured in Inches

NOMINAL PIPE SIZE150#RFRTJ300# RFRTJ600#RFRTJ900#RFRTJ1500#RFRTJ2500#RFRTJ
.5"0.1250.250.250.250.250.375
N/A0.6250.750.8750.8751
.75"0.1250.250.250.250.3750.375
N/A0.750.8750.87511.125
1"0.1250.250.250.250.3750.375
0.750.750.8750.87511.125
1.25"0.250.250.3750.3750.3750.5
0.750.8750.875111.375
1.5"0.250.250.3750.3750.50.625
0.750.8750.87511.1251.5
2"0.250.3750.3750.50.50.625
0.7511.1251.251.3751.625
2.5"0.250.3750.50.50.6250.75
0.8751.1251.251.3751.51.875
3"0.250.3750.50.6250.750.875
0.8751.1251.251.3751.752
3.5"0.3750.50.625N/AN/AN/A
0.8751.1251.375N/AN/AN/A
4"0.3750.50.6250.750.8751.125
0.8751.251.3751.6251.8752.5
5"0.3750.6250.750.8751.1251.375
11.3751.51.752.1252.875
6"0.50.6250.87511.3751.625
11.3751.751.8752.3753.25
8"0.50.8751.1251.3751.6252.125
1.1251.62522.252.8753.875
10"0.62511.3751.62522.625
1.251.752.252.53.254.625
12"0.751.1251.6251.8752.3753.5
1.37522.52.87545.25
14"0.751.251.752.1252.625N/A
1.3752.1252.6253.254.375N/A
16"0.8751.522.3753N/A
1.52.252.8753.6254.875N/A
18"11.6252.1252.6253.375N/A
1.6252.3753.12545.25N/A
20"1.1251.752.52.8753.75N/A
1.6252.753.54.3755.625N/A
24"1.2522.8753.54.375N/A
1.8753.1254.1255.256.625N/A

All Spectacle Blind are made from A516-70N material

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