Product Details

C Polymer End Caps

Welcome to Polymer Molding; we’re proud to offer reliable, strong, and affordable plastic end caps for plastic tubes, fittings, and rod ends. For a secure finish on your piping, trust our C polymer end caps. We engineer these top-quality plastic end caps for durability and to provide an optimal fit. Our plastic tube end caps ensure protection during transport, handling, and storage.

C series end caps provide a snug friction fit that is ideal for capping and protecting the outside diameters of threaded and non-threaded tubing, fittings, and rod ends. When searching for round tube end caps, there’s no better choice than Polymer Molding. View our table below to find the ideal caps for your application or to request a sample first.

Experience the Polymer Molding difference today with our trusted C polymer end caps. They're the superior choice in the industry, promising uncompromising reliability. If you’d like to learn more about Polymer Molding and our superior caps and molds, contact our staff today.

Technical Specifications

  • Typical wall thickness: .032
  • Color: Blue
  • Material: Low Density Polyethylene
  • LDPE service temperature: 150° F (66° C)
  • Applicable specs: MIL-C-5501/9, MIL-C-52078, NAS-844
  • RoHS Compliant
C Series product diagram

42 Parts

Filter dimensions to find the fit.

Metric Imperial
Part No. Color A: To Fit Outside Diameter B: Inside Length Product Options

Part No. C-1/8

Color

Blue

A: To Fit Outside Diameter

0.125

B: Inside Length

0.625

Part No. C-5/32

Color

Blue

A: To Fit Outside Diameter

0.156

B: Inside Length

0.625

Part No. C-3/16

Color

Blue

A: To Fit Outside Diameter

0.188

B: Inside Length

0.625

Part No. C-7/32

Color

Blue

A: To Fit Outside Diameter

0.219

B: Inside Length

0.75

Part No. C-1/4

Color

Blue

A: To Fit Outside Diameter

0.25

B: Inside Length

0.873

Part No. C-9/32

Color

Blue

A: To Fit Outside Diameter

0.281

B: Inside Length

0.875

Part No. C-5/16

Color

Blue

A: To Fit Outside Diameter

0.313

B: Inside Length

0.875

Part No. C-3/8

Color

Blue

A: To Fit Outside Diameter

0.375

B: Inside Length

0.865

Part No. C-7/16

Color

Blue

A: To Fit Outside Diameter

0.438

B: Inside Length

0.865

Part No. C-1/2

Color

Blue

A: To Fit Outside Diameter

0.5

B: Inside Length

0.86

Part No. C-9/16

Color

Blue

A: To Fit Outside Diameter

0.563

B: Inside Length

0.865

Part No. C-5/8

Color

Blue

A: To Fit Outside Diameter

0.625

B: Inside Length

0.865

Part No. C-11/16

Color

Blue

A: To Fit Outside Diameter

0.688

B: Inside Length

0.86

Part No. C-23/32

Color

Blue

A: To Fit Outside Diameter

0.719

B: Inside Length

0.715

Part No. C-3/4

Color

Blue

A: To Fit Outside Diameter

0.75

B: Inside Length

0.868

Part No. C-25/32-1

Color

Blue

A: To Fit Outside Diameter

0.781

B: Inside Length

1

Part No. C-13/16

Color

Blue

A: To Fit Outside Diameter

0.813

B: Inside Length

0.863

Part No. C-7/8

Color

Blue

A: To Fit Outside Diameter

0.875

B: Inside Length

0.86

Part No. C-15/16

Color

Blue

A: To Fit Outside Diameter

0.938

B: Inside Length

0.86

Part No. C-1

Color

Blue

A: To Fit Outside Diameter

1

B: Inside Length

0.86

Part No. C-1-1/16

Color

Blue

A: To Fit Outside Diameter

1.063

B: Inside Length

0.86

Part No. C-1-1/8

Color

Blue

A: To Fit Outside Diameter

1.125

B: Inside Length

0.86

Part No. C-1-3/16

Color

Blue

A: To Fit Outside Diameter

1.188

B: Inside Length

1

Part No. C-1-1/4

Color

Blue

A: To Fit Outside Diameter

1.25

B: Inside Length

0.985

Part No. C-1-5/16

Color

Blue

A: To Fit Outside Diameter

1.313

B: Inside Length

0.99

Part No. C-1-3/8

Color

Blue

A: To Fit Outside Diameter

1.375

B: Inside Length

0.99

Part No. C-1-1/2

Color

Blue

A: To Fit Outside Diameter

1.5

B: Inside Length

0.98

Part No. C-1-5/8

Color

Blue

A: To Fit Outside Diameter

1.625

B: Inside Length

0.98

Part No. C-1-3/4

Color

Blue

A: To Fit Outside Diameter

1.75

B: Inside Length

0.98

Part No. C-1-7/8

Color

Blue

A: To Fit Outside Diameter

1.875

B: Inside Length

0.99

Part No. C-2

Color

Blue

A: To Fit Outside Diameter

2

B: Inside Length

1

Part No. C-2-1/8

Color

Blue

A: To Fit Outside Diameter

2.125

B: Inside Length

0.965

Part No. C-2-1/4

Color

Blue

A: To Fit Outside Diameter

2.25

B: Inside Length

0.96

Part No. C-2-3/8

Color

Blue

A: To Fit Outside Diameter

2.375

B: Inside Length

0.96

Part No. C-2-1/2

Color

Blue

A: To Fit Outside Diameter

2.5

B: Inside Length

0.975

Part No. C-2-3/4

Color

Blue

A: To Fit Outside Diameter

2.75

B: Inside Length

1

Part No. C-3

Color

Blue

A: To Fit Outside Diameter

3

B: Inside Length

0.985

Part No. C-3-1/8

Color

Blue

A: To Fit Outside Diameter

3.125

B: Inside Length

1.235

Part No. C-3-1/4

Color

Blue

A: To Fit Outside Diameter

3.25

B: Inside Length

1.25

Part No. C-3-1/2

Color

Blue

A: To Fit Outside Diameter

3.5

B: Inside Length

1

Part No. C-4

Color

Blue

A: To Fit Outside Diameter

4

B: Inside Length

1.36

Part No. C-5

Color

Blue

A: To Fit Outside Diameter

5

B: Inside Length

1.375

Committed to a Better Customer Experience

When you call Polymer Molding Inc. during normal business hours, your call will be answered by a live person, every time. It is our sincere commitment to lead the market in exceptional customer service, because you deserve to do business with a company that truly cares about you and your product needs. Our knowledgeable, friendly and helpful sales and customer service representatives will take the time to help you select the best parts for your applications at the most competitive prices in the industry. We are here to answer questions, process your orders, and prepare your shipments quickly and efficiently. Click the button below to compare our pricing and see the Polymer Molding difference.

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