Delrin® Ball Plungers

Delrin® Ball Plungers are compact spring loaded devices for lightweight applications where products or components are made mostly or entirely of plastic. They provide electrical isolation, a durable non-marring contact point and controlled end forces with side-load tolerance. Available with a stainless steel ball or nylon ball in ANSI thread sizes 1/4-20 through 3/8-16. Not available in metric. Steel models are zinc plated with black, gold or clear chromate and a stainless steel spring is standard.

Specify by:

Thread size (ANSI 1/4-20, 5/16-18, 3/8-16)
Ball material (stainless steel or nylon)
End force (initial and final)
Body material and finish (steel or stainless steel, zinc plate finish for steel)

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Open All Tables

ANSI (Inch/American) Tables

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Contact Engineering

Part No.	Body Color Code	End Force, (Lbs)		A	B	C	D	ROHS	CAD
	Body Color Code	Initial	Final	A	B	C	D	ROHS	CAD
D54	White	2.0	5.0	1/4-20	0.531	0.027	0.125		D54
DL54	White	1.0	2.5	1/4-20	0.531	0.027	0.125		DL54
D56	White	4.0	9.0	5/16-18	0.578	0.039	0.156		D56
DL56	White	2.0	4.5	5/16-18	0.578	0.039	0.156		DL56
D58	White	5.0	10.0	3/8-16	0.625	0.053	0.187		D58
DL58	White	2.5	5.0	3/8-16	0.625	0.053	0.187		DL58

Conversion Calculators

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Metric & Inch conversion:

Inch

Lbf/Newton Conversion:

lbf

Delrin® Ball Plungers

Delrin^® ball plungers with stainless steel or nylon plastic ball are ideal for applications where products or components are made mostly or entirely of plastic.