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 0.125” to 4.500”.
  • 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
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Part Number

Hole Diameter

Outside Diameter

Spherical Radius

Material Type

Material Thickness

Finish

HP-250-S-32-EZ N/A 0.254 in N/A 0.250 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.032 in N/A Electro Plated Zinc
HP-250-S-39-EZ N/A 0.254 in N/A 0.250 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.039 in N/A Electro Plated Zinc
HP-250-S-62-EZ N/A 0.254 in N/A 0.250 in N/A 0.219 in N/A Hot Rolled Steel N/A 0.062 in N/A Electro Plated Zinc
HP-250-KS-32 N/A 0.254 in N/A 0.250 in N/A 0.219 in N/A Stainless Steel N/A 0.032 in N/A Plain Finish
HP-250-KS-62 N/A 0.254 in N/A 0.250 in N/A 0.219 in N/A Stainless Steel N/A 0.062 in N/A Plain Finish
HP-253-A-32 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Aluminum N/A 0.032 in N/A Plain Finish
HP-253-A-64 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Aluminum N/A 0.064 in N/A Plain Finish
HP-253-B-32 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Brass N/A 0.032 in N/A Plain Finish
HP-253-B-64 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Brass N/A 0.064 in N/A Plain Finish
HP-253-S-32 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.032 in N/A Plain Finish
HP-253-S-39 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.039 in N/A Plain Finish
HP-253-S-62 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Hot Rolled Steel N/A 0.062 in N/A Plain Finish
HP-253-S-32-MZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.032 in N/A Mechanically Plated Zinc
HP-253-S-39-MZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.039 in N/A Mechanically Plated Zinc
HP-253-S-62-MZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Hot Rolled Steel N/A 0.062 in N/A Mechanically Plated Zinc
HP-253-S-32-EZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.032 in N/A Electro Plated Zinc
HP-253-S-39-EZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Cold Rolled Steel N/A 0.039 in N/A Electro Plated Zinc
HP-253-S-62-EZ N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Hot Rolled Steel N/A 0.062 in N/A Electro Plated Zinc
HP-253-KS-32 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Stainless Steel N/A 0.032 in N/A Plain Finish
HP-253-KS-62 N/A 0.257 in N/A 0.253 in N/A 0.219 in N/A Stainless Steel N/A 0.062 in N/A Plain Finish
HP-278-A-32 N/A 0.282 in N/A 0.278 in N/A 0.234 in N/A Aluminum N/A 0.032 in N/A Plain Finish
HP-278-A-64 N/A 0.282 in N/A 0.278 in N/A 0.234 in N/A Aluminum N/A 0.064 in N/A Plain Finish
HP-278-B-32 N/A 0.282 in N/A 0.278 in N/A 0.234 in N/A Brass N/A 0.032 in N/A Plain Finish
HP-278-B-64 N/A 0.282 in N/A 0.278 in N/A 0.234 in N/A Brass N/A 0.064 in N/A Plain Finish
HP-278-S-32 N/A 0.282 in N/A 0.278 in N/A 0.234 in N/A Cold Rolled Steel N/A 0.032 in N/A Plain Finish
Unit of Measure
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