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.

Steel Short Spring Plungers with Heavy Spring Pressures
Product Information

Steel Short Spring Plungers with Heavy Spring Pressures

Steel noses are case hardened for wear resistance without brittleness.

Bodies are 12L14 steel with a black oxide finish.

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.


Click Image to Enlarge





Steel Short Spring Plungers with Heavy Spring Pressures
Heat Treated Black Oxide Steel Nose
With
Lock Ele.
Part No.
Without
Lock Ele.
Part No.
End
Pressures
Lbs. Start
End
Pressures
Lbs. 1/2
End
Pressures
Lbs. Full
A B C +.000
-.002
D
Net Lbs.
Per 100
33100 33100P 1.5 3.1 4.75 #8-32 7/16 .052 .070 1/2
33104 33104P 1.5 3.1 4.75 #8-36 7/16 .052 .070 1/2
33106 33106P 1.75 4.0 6.25 #10-32 15/32 .065 .093 1/2
33110 33110P 3.0 6.75 10.5 1/4-20 17/32 .078 .119 1/2
33112 33112P 3.75 9.6 15.5 5/16-18 9/16 .084 .135 1
33114 33114P 4.5 11.5 18.5 3/8-16 5/8 .110 .186 2
33116 33116P 5.0 16.5 28.0 1/2-13 3/4 .151 .248 3
33118 33118P 7.0 28.5 50.0 5/8-11 1-1/16 .215 .310 6
Brown Delrin Nose
33000 33000P 1.5 3.1 4.75 #8-32 7/16 .052 .070 1/2
33002 33002P 1.5 3.1 4.75 #8-36 7/16 .052 .070 1/2
33004 33004P 1.75 4.0 6.25 #10-32 15/32 .065 .093 1/2
33006 33006P 3.0 6.75 10.5 1/4-20 17/32 .078 .119 1/2
33008 33008P 3.75 9.6 15.5 5/16-18 9/16 .084 .135 1
33010 33010P 4.5 11.5 18.5 3/8-16 5/8 .110 .186 1
33012 33012P 5.0 16.5 28.0 1/2-13 3/4 .151 .248 2
33014 33014P 7.0 28.5 50.0 5/8-11 1-1/16 .215 .310 5

All parts conform to TCMAI Standards