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Ball Plungers

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The nylon locking element holds the plunger body securely in place without the need for lock nuts or other devices. We recommend a 90° countersink 1/32 inch larger than the major diameter of the mating thread to prevent damaging the element.




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Item #

Dim. A

Dim. B

Dim. C

Ball Dia. D

Color Code

Plunger Material

Ball Nose Material

End Pressure at Start

End Pressure at Full

10001B #4-48 Inch 3/16 Inch .020 Inch .062 Inch Plain Steel Stainless Steel 0.12 lbs. 0.5 lbs.
10002B #5-40 Inch 1/4 Inch .020 Inch .062 Inch Plain Steel Stainless Steel 0.25 lbs. 0.75 lbs.
10003B #6-40 Inch 5/16 Inch .023 Inch .078 Inch Plain Steel Stainless Steel 0.5 lbs. 1.0 lbs.
10004B #8-36 Inch 11/32 Inch .025 Inch .093 Inch Plain Steel Stainless Steel 0.5 lbs. 1.25 lbs.
10100B #8-32 Inch 11/32 Inch .025 Inch .093 Inch Plain Steel Stainless Steel 0.5 lbs. 1.25 lbs.
10005 #10-32 Inch 33/64 Inch .025 Inch .093 Inch Silver- Light Pressure Steel Stainless Steel 0.5 lbs. 1.5 lbs.
10006 #10-32 Inch 33/64 Inch .025 Inch .093 Inch Black- Medium Pressure Steel Stainless Steel 1.5 lbs. 3.0 lbs.
10007 #10-32 Inch 33/64 Inch .025 Inch .093 Inch Gold- High Pressure Steel Stainless Steel 2.0 lbs. 5.0 lbs.
10008 1/4-20 Inch 17/32 Inch .035 Inch .125 Inch Silver- Light Pressure Steel Stainless Steel 2.0 lbs. 4.0 lbs.
10009 1/4-20 Inch 17/32 Inch .035 Inch .125 Inch Black- Medium Pressure Steel Stainless Steel 3.0 lbs. 7.0 lbs.
10010 1/4-20 Inch 17/32 Inch .035 Inch .125 Inch Gold- High Pressure Steel Stainless Steel 4.0 lbs. 12.0 lbs.
10011 5/16-18 Inch 37/64 Inch .040 Inch .156 Inch Silver- Light Pressure Steel Stainless Steel 2.0 lbs. 4.5 lbs.
10012 5/16-18 Inch 37/64 Inch .040 Inch .156 Inch Black- Medium Pressure Steel Stainless Steel 4.0 lbs. 9.0 lbs.
10013 5/16-18 Inch 37/64 Inch .040 Inch .156 Inch Gold- High Pressure Steel Stainless Steel 6.0 lbs. 17.0 lbs.
10014 3/8-16 Inch 5/8 Inch .048 Inch .187 Inch Silver- Light Pressure Steel Stainless Steel 2.5 lbs. 5.0 lbs.
10015 3/8-16 Inch 5/8 Inch .048 Inch .187 Inch Black- Medium Pressure Steel Stainless Steel 5.0 lbs. 10.0 lbs.
10016 3/8-16 Inch 5/8 Inch .048 Inch .187 Inch Gold- High Pressure Steel Stainless Steel 6.0 lbs. 21.0 lbs.
10017 1/2-13 Inch 3/4 Inch .072 Inch .281 Inch Silver- Light Pressure Steel Stainless Steel 3.0 lbs. 6.0 lbs.
10018 1/2-13 Inch 3/4 Inch .072 Inch .281 Inch Black- Medium Pressure Steel Stainless Steel 6.0 lbs. 12.0 lbs.
10019 1/2-13 Inch 3/4 Inch .072 Inch .281 Inch Gold- High Pressure Steel Stainless Steel 6.0 lbs. 30.0 lbs.
10020 5/8-11 Inch 63/64 Inch .096 Inch .375 Inch Silver- Light Pressure Steel Stainless Steel 4.5 lbs. 9.0 lbs.
10021 5/8-11 Inch 63/64 Inch .096 Inch .375 Inch Black- Medium Pressure Steel Stainless Steel 9.0 lbs. 18.0 lbs.
10022 5/8-11 Inch 63/64 Inch .096 Inch .375 Inch Gold- High Pressure Steel Stainless Steel 7.0 lbs. 50.0 lbs.
10001BP #4-48 Inch 3/16 Inch .020 Inch .062 Inch Plain Steel Stainless Steel 0.12 lbs. 0.5 lbs.
10002BP #5-40 Inch 1/4 Inch .020 Inch .062 Inch Plain Steel Stainless Steel 0.25 lbs. 0.75 lbs.
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