Inch Size, Steel
Spring Plungers
With Steel or Plastic Nose Pin
SPNLE
SPNLE
RoHS Compliant


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SPNLE
Specification
Information
Body: Case hardened steel, black oxide finish
Plunger end of standard type is case hardened steel
Plunger end of plastic nose type is high-tensile thermosetting plastic
All plungers with thread size 1/4-20 and smaller will have nylon patch

Spring plungers have multitude of uses in fixtures, jigs, detents, dies and other tooling applications. They give sure and positive spring tension.
The phenolic plastic nose type is used where it is important not to mar metals such as aluminum or brass.

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Light End Pressure - Silver Steel Nose

Dimensions in:

inches
(millimeters)

Part Number
A
Thread
B
C
D
End Force Lbs.
Initial
End Force Lbs.
End
Standard
NLE**
6-32
.531
(13.49)
.063
(1.58)
.046
(1.17)
.5
1.5
8-32
.625
(15.88)
.093
(2.36)
.070
(1.78)
.7
2.3
10-32
.750
(19.05)
.125
(3.18)
.093
(2.36)
1.3
2.7
1/4-20
.750
(19.05)
.125
(3.18)
.119
(3.02)
.25
2
1/4-20
1.00
(25.4)
.187
(4.75)
.119
(3.02)
1
4
1/4-28
1.00
(25.4)
.187
(4.75)
.119
(3.02)
1
4
5/16-18
1.00
(25.4)
.187
(4.75)
.135
(3.43)
1.5
4.5
3/8-16
1.125
(28.58)
.187
(4.75)
.186
(4.72)
2.8
7.2
1/2-13
1.250
(31.75)
.250
(6.35)
.248
(6.30)
2.7
9.3
5/8-11
1.50
(38.10)
.312
(7.93)
.310
(7.87)
3.5
10.5
3/4-10
1.75
(44.45)
.312
(7.93)
.374
(9.50)
4
16
1-8
2.406
(61.11)
.500
(12.70)
.499
(12.68)
4
31
Heavy End Pressure - Black Steel Nose

Dimensions in:

inches
(millimeters)

Part Number
A
B
C
D
End Force Lbs.
Initial
End Force Lbs.
End
Standard
NLE**
6-32
.531
(13.49)
.062
(1.58)
.046
(1.17)
1.5
4.5
6-32
.375
(9.53)
.062
(1.58)
.046
(1.17)
1.0
1.6
8-32
.625
(15.88)
.093
(2.36)
.070
(1.78)
2.7
7.3
10-32
.750
(19.05)
.125
(3.18)
.093
(2.36)
2.9
11.1
1/4-20
.750
(19.05)
.125
(3.18)
.119
(3.02)
2
9
1/4-20
1
(25.4)
.187
(4.75)
.119
(3.02)
3
13
1/4-28
1
(25.4)
.187
(4.75)
.119
(3.02)
3
13
5/16-18
1
(25.4)
.187
(4.75)
.135
(3.43)
3
15
3/8-16
1.125
(28.70)
.187
(4.75)
.186
(4.72)
5.5
14.5
1/2-13
1.25
(31.75)
.250
(6.35)
.248
(6.30)
6.6
17.4
5/8-11
1.50
(38.10)
.312
(7.93)
.310
(7.87)
10.5
25.5
3/4-10
1.75
(44.45)
.312
(7.93)
.374
(9.50)
6.7
37.3
1-8
2.406
(61.11)
.500
(12.70)
.499
(12.68)
16
68
Light End Pressure - Brown Phenolic Nose

Dimensions in:

inches
(millimeters)

Part Number
A
B
C
D
End Force Lbs.
Initial
End Force Lbs.
End
Standard
NLE**
8-32
.625
(15.88)
.093
(2.36)
.070
(1.78)
.7
2.3
10-32
.750
(19.05)
.125
(3.18)
.092
(2.34)
1.3
2.7
1/4-20
1
(25.4)
.187
(4.75)
.118
(3.00)
1
4
1/4-28
1
(25.4)
.187
(4.75)
.118
(3.00)
1
4
5/16-18
1
(25.4)
.187
(4.75)
.135
(3.43)
1.5
4.5
3/8-16
1.125
(28.58)
.187
(4.75)
.187
(4.75)
2.8
7.2
1/2-13
1.25
(31.75)
.250
(6.35)
.248
(6.30)
2.7
9.3
5/8-11
1.50
(38.10)
.312
(7.93)
.310
(7.87)
3.5
10.5
Heavy End Pressure - Brown Phenolic Nose

Dimensions in:

inches
(millimeters)

Part Number
A
B
C
D
End Force Lbs.
Initial
End Force Lbs.
End
Standard
NLE**
8-32
.625
(15.88)
.093
(2.36)
.070
(1.78)
2.7
7.3
10-32
.750
(19.05)
.125
(3.18)
.092
(2.34)
2.9
11.1
1/4-20
1
(25.4)
.187
(4.75)
.118
(3.00)
3
13
1/4-28
1
(25.4)
.187
(4.75)
.118
(3.00)
3
13
5/16-18
1
(25.4)
.187
(4.75)
.135
(3.43)
3
15
3/8-16
1.125
(28.58)
.187
(4.75)
.187
(4.75)
5.5
14.5
1/2-13
1.25
(31.75)
.250
(6.35)
.248
(6.30)
6.6
17.4
5/8-11
1.50
(38.10)
.312
(7.93)
.310
(7.87)
10.5
25.5
*Nylon Patch
**With nylon locking element. Not Recommended in aluminum applications.