Hubbard, M. D., Spring Co., Inc. - Cupped Plugs and Cupped Plugs Pierced
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Cupped Plugs and Cupped Plugs Pierced

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Cupped plugs are an inexpensive, efficient, permanent method of closing/sealing manufactured holes. Cupped plugs do not require a counter bore to seat against. May be used under higher pressure applications than a Welch plug depending on application.

Standard Materials:

• Steel: SAE 1008/1010 low carbon steel to ASTM#A109
• Aluminum: 1100H14 to ASTM#B209
• Brass to ASTM#B36
• Stainless Steel: type 302 to ASTM#A177
• Customer specific materials different than those listed above are commonly run.

Finish:

• Steel: Provided plain finish with a light oil. Cupped plugs can be provided with a wide range of coatings: mechanical zinc (processed in house), electro-zinc, black oxide.
• Aluminum: Provided plain finish. Aluminum plugs are washed in a light mineral spirit in order to remove any solvents or residue.
• Stainless Steel: Provided plain finish. Stainless plugs can be passivated.
• Brass: Provided plain finish.


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Item #

Minor Outside Diameter-A

Major Outside Diameter-B

Hole I.D.-C

Height Overall-H

Outside Radius-R

Thickness

Material

List Price

CP-111 .190/.185 Inch .200/.195 Inch N/A 3/16 Inch 3/64 Inch .020 Inch Steel QUOTE
CP-124 .265/.255 Inch .275/.265 Inch N/A 3/16 Inch 5/64 Inch .020 Inch Steel QUOTE
CP-129 .247/.242 Inch .265/.260 Inch N/A 1/4 Inch 3/64 Inch .025 Inch Steel QUOTE
CP-141 .279/.274 Inch .289/.284 Inch N/A 3/16 Inch 3/64 Inch .020 Inch Steel QUOTE
CP-144 .309/.304 Inch .332/.327 Inch N/A 1/4 Inch 1/16 Inch .032 Inch Steel QUOTE
CPP-111 .342/.336 Inch .342/.336 Inch 11/64 Inch 3/64 Inch 3/32 Inch .020 Inch Brass QUOTE
CPP-112 .367/.361 Inch .367/.361 Inch 15/64 Inch 3/16 Inch 1/8 Inch .016 Inch Brass QUOTE
CP-112 .380/.375 Inch .400/.395 Inch N/A 7/32 Inch 1/16 Inch .036 Inch Steel QUOTE
CP-131 .437/.432 Inch .458/.448 Inch N/A 3/16 Inch 1/16 Inch .032 Inch Steel QUOTE
CPP-126 .442/.432 Inch .442/.432 Inch 9/32 Inch 1/16 Inch 3/64 Inch .020 Inch Steel QUOTE
CPP-113 .454/.434 Inch .454/.434 Inch 11/64 Inch 17/64 Inch 1/16 Inch .050 Inch Steel QUOTE
CPP-124 .502/.497 Inch .502/.497 Inch 1/4 Inch 3/8 Inch 1/16 Inch .022 Inch Steel QUOTE
CPP-114 .547/.541 Inch .547/.541 Inch 1/4 Inch 3/8 Inch 1/16 Inch .022 Inch Steel QUOTE
CPP-115 .550/.544 Inch .550/.544 Inch 19/64 Inch 3/16 Inch 1/16 Inch .032 Inch Steel QUOTE
CPP-122 .550/.544 Inch .550/.544 Inch 21/64 Inch 3/16 Inch 1/16 Inch .032 Inch Steel QUOTE
CP-123 .536/.530 Inch .555/.545 Inch N/A 1/4 Inch 1/8 Inch .032 Inch Steel QUOTE
CP-130 .562/.552 Inch .572/.562 Inch N/A 19/64 Inch 1/16 Inch .032 Inch Steel QUOTE
CPP-123 .581/.575 Inch .581/.575 Inch 3/16 Inch 1/8 Inch 1/16 Inch .032 Inch Steel QUOTE
CPP-130 .631/.625 Inch .631/.625 Inch 17/64 Inch 11/64 Inch 5/64 Inch .064 Inch Aluminum QUOTE
CP-145 .634/.631 Inch .634/.631 Inch N/A 25/64 Inch 3/64 Inch .020 Inch Brass QUOTE
CP-149 .639/.636 Inch .639/.636 Inch N/A 13/64 Inch 5/64 Inch .040 Inch Steel QUOTE
CPP-129 .660/.654 Inch .660/.654 Inch 23/64 Inch 7/64 Inch 1/16 Inch .016 Inch Steel QUOTE
CPP-125 .669/.659 Inch .669/.659 Inch 15/32 Inch 5/16 Inch 5/64 Inch .050 Inch Steel QUOTE
CP-137 .696/.690 Inch .696/.690 Inch N/A 13/64 Inch 3/32 Inch .025 Inch Steel QUOTE
CPP-132 .755/.745 Inch .755/.745 Inch 39/64 Inch 1/16 Inch 1/32 Inch .010 Inch Steel QUOTE
  Results 1 - 25 of 65 1 2 3 


M.D. Hubbard Spring Company  
595 S. Lapeer Rd., Box 425T • Oxford, MI 48371
Ph: 248-628-2528 • Fax: 248-628-7734

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