Metric Spring Plungers — Standard Lengths

Metric Spring Plunger

Locking Element
Spring Plunger drawing
Steel or Delrin® Nose
Heavy or Light Spring Pressures

Bodies are steel with a zinc plate finish

End pressures are given in kilograms. Full pressures are the force kilograms needed to move the nose the distance shown in "C" columns.

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" larger than the major diameter of the mating thread to prevent damaging the element.

Plungers may be ordered with or without the locking element. Plungers without element are the same price, but are considered "specials" and cannot be returned. We recommend using without the locking element for applications in aluminum.

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

All dimensions in millimeters

*Conform to TCMAI/NIJFCM standards

Heavy Spring Pressures
Metric Spring Plungers
With
Lock. Ele.
Part No.
Without
Lock. Ele.
Part No.
Price/ Unit
End Pressure Kilograms
Class 6g ISO
A
B
C
±.025
D
Net Lbs
Per 100
Start
1/2
Full
Heat Treated Black Oxide Steel Nose
*33154
*33154P
$5.06
1.35
3.60
5.85
M6 x 1.0
25.00
5.00
3.00
1
*33155
*33155P
$5.12
1.35
4.05
6.75
M8 x 1.25
25.00
5.00
3.40
2
*33156
*33156P
$5.25
2.50
4.50
6.50
M10 x 1.5
29.00
5.00
4.70
4
*33157
*33157P
$5.38
3.00
5.40
7.85
M12 x 1.75
32.00
6.00
6.30
5
Brown Delrin® Nose
33054
33054P
$5.06
1.35
3.60
5.85
M6 x 1.0
25.00
5.00
3.00
1
33055
33055P
$5.12
1.35
4.05
6.75
M8 x 1.25
25.00
5.00
3.40
2
33056
33056P
$5.25
2.50
4.50
6.50
M10 x 1.5
29.00
5.00
4.70
4
33057
33057P
$5.38
3.00
5.40
7.85
M12 x 1.75
32.00
6.00
6.30
5

Light Spring Pressures
Metric Spring Plungers
With
Lock. Ele.
Part No.
Without
Lock. Ele.
Part No.
Price/ Unit
End Pressure Kilograms
Class 6g ISO
A
B
C
±.025
D
Net Lbs
Per 100
Start
1/2
Full
Heat Treated Zinc Plated Steel Nose
*33254
*33254P
$5.06
.50
1.15
1.80
M6 x 1.0
25.00
5.00
3.00
1
*33255
*33255P
$5.12
.70
1.35
2.00
M8 x 1.25
25.00
5.00
3.40
2
*33256
*33256P
$5.25
1.25
2.25
3.25
M10 x 1.5
29.00
5.00
4.70
4
*33257
*33257P
$5.38
1.20
2.70
4.20
M12 x 1.75
32.00
6.00
6.30
5
White Delrin® Nose
33354
33354P
$5.06
.50
1.15
1.80
M6 x 1.0
25.00
5.00
3.00
1
33355
33355P
$5.12
.70
1.35
2.00
M8 x 1.25
25.00
5.00
3.40
2
33356
33356P
$5.25
1.25
2.25
3.25
M10 x 1.5
29.00
5.00
4.70
4
33357
33357P
$5.38
1.20
2.70
4.20
M12 x 1.75
32.00
6.00
6.30
5

 
Price Guide
All prices are subject to change without notice.
Contact Us for current prices and bulk pricing.
  
     
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In addition to the standard components shown,
special sizes can also be furnished.
Send print or drawing for quotation.
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800-236-3956

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