NW Spring Plungers
NW spring plungers—often called detent plungers—are spring-loaded components used to create a repeatable detent, indexing point, or light holding force in fixtures and mechanical assemblies (application dependent). They’re commonly used to position adjustable parts, provide “click-stop” engagement, and maintain consistent contact in guards, covers, slides, and modular workholding setups. Because the feel and retention depend on spring force and tip geometry, spring plungers are typically selected by specification rather than by general description.
NORTHWESTERN TOOLS 33103 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.7 Initial x 5.0 Half x 7.3 Full
SKU: NW-33103
MPN: 33103
NORTHWESTERN TOOLS 33103P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.7 Initial x 5.0 Half x 7.3 Full
SKU: NW-33103P
MPN: 33103P
NORTHWESTERN TOOLS 33104 Short Spring Plungers - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 1.5 Initial x 3.1 Half x 4.75 Full
SKU: NW-33104
MPN: 33104
NORTHWESTERN TOOLS 33104H Hex Drive "Short" Steel Spring Plungers - End Force: 1.5 Initial x 4.75 Final
SKU: NW-33104H
MPN: 33104H
NORTHWESTERN TOOLS 33104HP Hex Drive "Short" Steel Spring Plungers - End Force: 1.5 Initial x 4.75 Final
SKU: NW-33104HP
MPN: 33104HP
NORTHWESTERN TOOLS 33104M Metric Short Spring Plungers - Heavy Spring Pressures - Heat Treated Black Oxide Steel Nose
SKU: NW-33104M
MPN: 33104M
NORTHWESTERN TOOLS 33104MP Metric Short Spring Plungers - Heavy Spring Pressures - Heat Treated Black Oxide Steel Nose
SKU: NW-33104MP
MPN: 33104MP
NORTHWESTERN TOOLS 33104P Short Spring Plungers - Heavy Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 1.5 Initial x 3.1 Half x 4.75 Full
SKU: NW-33104P
MPN: 33104P
NORTHWESTERN TOOLS 33105 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.9 Initial x 7.0 Half x 11.1 Full
SKU: NW-33105
MPN: 33105
NORTHWESTERN TOOLS 33105P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.9 Initial x 7.0 Half x 11.1 Full
SKU: NW-33105P
MPN: 33105P
NORTHWESTERN TOOLS 33106 Short Spring Plungers - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 1.75 Initial x 4.0 Half x 6.25 Full
SKU: NW-33106
MPN: 33106
NORTHWESTERN TOOLS 33106H Hex Drive "Short" Steel Spring Plungers - End Force: 1.75 Initial x 4.75 Final
SKU: NW-33106H
MPN: 33106H
NORTHWESTERN TOOLS 33106HP Hex Drive "Short" Steel Spring Plungers - End Force: 1.75 Initial x 4.75 Final
SKU: NW-33106HP
MPN: 33106HP
NORTHWESTERN TOOLS 33106M Metric Short Spring Plungers - Heavy Spring Pressures - Heat Treated Black Oxide Steel Nose
SKU: NW-33106M
MPN: 33106M
NORTHWESTERN TOOLS 33106MP Metric Short Spring Plungers - Heavy Spring Pressures - Heat Treated Black Oxide Steel Nose
SKU: NW-33106MP
MPN: 33106MP
NORTHWESTERN TOOLS 33106P Short Spring Plungers - Heavy Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 1.75 Initial x 4.0 Half x 6.25 Full
SKU: NW-33106P
MPN: 33106P
NORTHWESTERN TOOLS 33107 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 3.0 Initial x 8.0 Half x 13.0 Full
SKU: NW-33107
MPN: 33107
NORTHWESTERN TOOLS 33107P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 3.0 Initial x 8.0 Half x 13.0 Full
SKU: NW-33107P
MPN: 33107P
NORTHWESTERN TOOLS 33108 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 3.0 Initial x 8.0 Half x 13.0 Full
SKU: NW-33108
MPN: 33108
NORTHWESTERN TOOLS 33108P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 3.0 Initial x 8.0 Half x 13.0 Full
SKU: NW-33108P
MPN: 33108P
NORTHWESTERN TOOLS 33109 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.0 Initial x 5.5 Half x 9.0 Full
SKU: NW-33109
MPN: 33109
NORTHWESTERN TOOLS 33109P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 2.0 Initial x 5.5 Half x 9.0 Full
SKU: NW-33109P
MPN: 33109P
NORTHWESTERN TOOLS 33110 Short Spring Plungers - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 3.0 Initial x 6.75 Half x 10.5 Full
SKU: NW-33110
MPN: 33110
NORTHWESTERN TOOLS 33110H Hex Drive "Short" Steel Spring Plungers - End Force: 3.0 Initial x 10.5 Final
SKU: NW-33110H
MPN: 33110H