Product Spotlight:

Our line of Press-Thru (trade marked) spring and ball plungers have the same dimensions, spring pressures, and materials as our standard press fit product line.
Press-Thru™ Spring and Ball Plungers

Our line of Press-Thru™ spring and ball plungers have the same dimensions, spring pressures, and materials as our standard press fit product line. They are designed without the flange on the nose end to allow for the insertion of the plunger from top or bottom, front or back. Simply press the body through the hole until the plunger is flush with the surface. The body is slightly over sized to fit firmly into the hole. Please contact us for a free sample, or if you need any technical information.

Stainless Steel Standard Lengths with Light Spring Pressures
Product Information

Stainless Steel Standard Lengths with Light Spring Pressures

All stainless steel parts are made of 303 material

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

To prevent possible spring damage, use of a Northwestern Wrench is recommended when installing from plunger end.


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Stainless Steel Standard Lengths with Light Spring Pressures
Stainless Nose
With
Lock Ele.
Part No.
Without
Lock Ele.
Part No.
Color
Code
End
Pressures
Lbs. Start
End
Pressures
Lbs. 1/2
End
Pressures
Lbs. Full
A B C +.000
-.002
D
Net Lbs.
Per 100
33500 33500P Plain 0.5 1.0 1.5 #6-32 17/32 .062 .046 1/2
33503 33503P Plain 0.7 1.5 2.3 #8-32 5/8 .093 .070 1/2
33504 33504P Plain 1.3 2.0 2.7 #10-32 3/4 .125 .093 1/2
33505 33505P Plain 1.0 2.5 4.0 1/4-20 1" .187 .119 1
33506 33506P Plain 1.0 2.5 4.0 1/4-28 1" .187 .119 1
33508 33508P Plain 1.5 3.0 4.5 5/16-18 1" .187 .135 1-1/2
33509 33509P Plain 2.8 5.0 7.2 3/8-16 1-1/8 .187 .186 2
33510 33510P Plain 2.7 6.0 9.3 1/2-13 1-1/4 .250 .248 5
White Delrin Nose
33543 33543P Plain 0.7 1.5 2.3 #8-32 5/8 .093 .070 1/2
33544 33544P Plain 1.3 2.0 2.7 #10-32 3/4 .125 .093 1/2
33545 33545P Plain 1.0 2.5 4.0 1/4-20 1" .187 .119 1
33546 33546P Plain 1.0 2.5 4.0 1/4-28 1" .187 .119 1
33548 33548P Plain 1.5 3.0 4.5 5/16-18 1" .187 .135 1-1/2
33549 33549P Plain 2.8 5.0 7.2 3/8-16 1-1/8 .187 .186 2
33550 33550P Plain 2.7 6.0 9.3 1/2-13 1-1/4 .250 .248 5

All parts conform to TCMAI Standards

Standard lengths available with Phenolic noses upon request.