M.D. Hubbard Spring Company
M.D. Hubbard Spring Company
595 S. Lapeer Road P.O. Box 425 Oxford, MI 48371
Phone: 248-628-2528
Fax: 248-628-7734
E-Mail: info@companies.com
Website: www.hubbardspring.com
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Blanked edge Welch Plugs are engineered to seal core holes in castings with plug sizes ranging from 3mm - 100mm.

  • Good for limited depth and lower-pressure applications.
  • Best used as cover or to retain liquid at low or no pressure.

 

WELCH PLUGS – BLANKED EDGE ENGLISH (HP)
Unit of Measure
1 2 3 

Part Number

Outside Diameter

Hole Diameter

Spherical Radius

Material Type

Material Thickness

HPM-1969-S-39 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Cold Rolled Steel N/A 1 mm
HPM-1969-S-62 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-1969-S-83 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-1969-S-32-MZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-1969-S-39-MZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Cold Rolled Steel N/A 1 mm
HPM-1969-S-62-MZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-1969-S-83-MZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-1969-S-32-EZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-1969-S-39-EZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Cold Rolled Steel N/A 1 mm
HPM-1969-S-62-EZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-1969-S-83-EZ N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-1969-KS-32 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Stainless Steel N/A 0.81 mm
HPM-1969-KS-62 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Stainless Steel N/A 1.57 mm
HPM-1969-KS-83 N/A 50 mm N/A 50.241 mm N/A 70 mm N/A Stainless Steel N/A 2.11 mm
HPM-2047-A-64 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Aluminum N/A 1.63 mm
HPM-2047-A-81 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Aluminum N/A 2 mm
HPM-2047-B-64 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Brass N/A 1.63 mm
HPM-2047-B-81 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Brass N/A 2 mm
HPM-2047-S-32 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2047-S-39 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2047-S-62 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2047-S-83 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2047-S-32-MZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2047-S-39-MZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2047-S-62-MZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2047-S-83-MZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2047-S-32-EZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2047-S-39-EZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2047-S-62-EZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2047-S-83-EZ N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2047-KS-32 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Stainless Steel N/A 0.81 mm
HPM-2047-KS-62 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Stainless Steel N/A 1.57 mm
HPM-2047-KS-83 N/A 52 mm N/A 52.222 mm N/A 75 mm N/A Stainless Steel N/A 2.11 mm
HPM-2205-A-64 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Aluminum N/A 1.63 mm
HPM-2205-A-81 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Aluminum N/A 2 mm
HPM-2205-B-64 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Brass N/A 1.63 mm
HPM-2205-B-81 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Brass N/A 2 mm
HPM-2205-S-32 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2205-S-39 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2205-S-62 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2205-S-83 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2205-S-32-MZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2205-S-39-MZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2205-S-62-MZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2205-S-83-MZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2205-S-32-EZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2205-S-39-EZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2205-S-62-EZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2205-S-83-EZ N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2205-KS-32 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Stainless Steel N/A 0.81 mm
HPM-2205-KS-62 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Stainless Steel N/A 1.57 mm
HPM-2205-KS-83 N/A 56 mm N/A 56.236 mm N/A 80 mm N/A Stainless Steel N/A 2.11 mm
HPM-2362-A-64 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Aluminum N/A 1.63 mm
HPM-2362-A-81 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Aluminum N/A 2 mm
HPM-2362-B-64 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Brass N/A 1.63 mm
HPM-2362-B-81 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Brass N/A 2 mm
HPM-2362-S-32 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2362-S-39 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2362-S-62 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2362-S-83 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2362-S-32-MZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2362-S-39-MZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2362-S-62-MZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2362-S-83-MZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2362-S-32-EZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2362-S-39-EZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2362-S-62-EZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2362-S-83-EZ N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2362-KS-32 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Stainless Steel N/A 0.81 mm
HPM-2362-KS-62 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Stainless Steel N/A 1.57 mm
HPM-2362-KS-83 N/A 60 mm N/A 60.223 mm N/A 85 mm N/A Stainless Steel N/A 2.11 mm
HPM-2480-A-64 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Aluminum N/A 1.63 mm
HPM-2480-A-81 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Aluminum N/A 2 mm
HPM-2480-B-64 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Brass N/A 1.63 mm
HPM-2480-B-81 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Brass N/A 2 mm
HPM-2480-S-32 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2480-S-39 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2480-S-62 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2480-S-83 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2480-S-32-MZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2480-S-39-MZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2480-S-62-MZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2480-S-83-MZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2480-S-32-EZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 0.81 mm
HPM-2480-S-39-EZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Cold Rolled Steel N/A 1 mm
HPM-2480-S-62-EZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-2480-S-83-EZ N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-2480-KS-32 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Stainless Steel N/A 0.81 mm
HPM-2480-KS-62 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Stainless Steel N/A 1.57 mm
HPM-2480-KS-83 N/A 63 mm N/A 63.221 mm N/A 90 mm N/A Stainless Steel N/A 2.11 mm
HPM-3150-A-64 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Aluminum N/A 1.63 mm
HPM-3150-A-81 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Aluminum N/A 2 mm
HPM-3150-B-64 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Brass N/A 1.63 mm
HPM-3150-B-81 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Brass N/A 2 mm
HPM-3150-S-62 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-3150-S-83 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-3150-S-134 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 3.4 mm
HPM-3150-S-62-EZ N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-3150-S-83-EZ N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-3150-S-134-EZ N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Hot Rolled Steel N/A 3.4 mm
HPM-3150-KS-62 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Stainless Steel N/A 1.57 mm
HPM-3150-KS-83 N/A 80 mm N/A 80.264 mm N/A 112 mm N/A Stainless Steel N/A 2.11 mm
HPM-3937-A-64 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Aluminum N/A 1.63 mm
HPM-3937-A-81 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Aluminum N/A 2 mm
HPM-3937-B-64 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Brass N/A 1.63 mm
HPM-3937-B-81 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Brass N/A 2 mm
HPM-3937-S-62 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-3937-S-83 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-3937-S-134 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 3.4 mm
HPM-3937-S-62-EZ N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 1.57 mm
HPM-3937-S-83-EZ N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 2.11 mm
HPM-3937-S-134-EZ N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Hot Rolled Steel N/A 3.4 mm
HPM-3937-KS-62 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Stainless Steel N/A 1.57 mm
HPM-3937-KS-83 N/A 100 mm N/A 100.254 mm N/A 140 mm N/A Stainless Steel N/A 2.11 mm
Unit of Measure
1 2 3