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 33055P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Brown Delrin Nose, End Force: 13.5 Initial x 40.0 Half x 67.0 Full
SKU: NW-33055P
MPN: 33055P
NORTHWESTERN TOOLS 33055SS Stainless Steel Metric Spring Plungers - Brown Delrin Nose - M8 x 1.25 - With Locking Element
SKU: NW-33055SS
MPN: 33055SS
NORTHWESTERN TOOLS 33056 Metric Spring Plungers - Standard Lengths - Heavy Pressures - With Lock. Element - Brown Delrin Nose, End Force: 24.5 Initial x 44.5 Half x 64.5 Full
SKU: NW-33056
MPN: 33056
NORTHWESTERN TOOLS 33056P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Brown Delrin Nose, End Force: 24.5 Initial x 44.5 Half x 64.5 Full
SKU: NW-33056P
MPN: 33056P
NORTHWESTERN TOOLS 33056SS Stainless Steel Metric Spring Plungers - Brown Delrin Nose - M10 x 1.5 - With Locking Element
SKU: NW-33056SS
MPN: 33056SS
NORTHWESTERN TOOLS 33057 Metric Spring Plungers - Standard Lengths - Heavy Pressures - With Lock. Element - Brown Delrin Nose, End Force: 29.5 Initial x 53.5 Half x 77.5 Full
SKU: NW-33057
MPN: 33057
NORTHWESTERN TOOLS 33057P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Brown Delrin Nose, End Force: 29.5 Initial x 53.5 Half x 77.5 Full
SKU: NW-33057P
MPN: 33057P
NORTHWESTERN TOOLS 33057SS Stainless Steel Metric Spring Plungers - Brown Delrin Nose - M12 x 1.75 - With Locking Element
SKU: NW-33057SS
MPN: 33057SS
NORTHWESTERN TOOLS 33101 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.5 Initial x 3.0 Half x 4.5 Full
SKU: NW-33101
MPN: 33101
NORTHWESTERN TOOLS 33101P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.5 Initial x 3.0 Half x 4.5 Full
SKU: NW-33101P
MPN: 33101P
NORTHWESTERN TOOLS 33102 Standard Length Spring Plungers - Heavy Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 1.3 Half x 1.6 Full
SKU: NW-33102
MPN: 33102
NORTHWESTERN TOOLS 33102P Standard Length Spring Plungers - Heavy Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 1.3 Half x 1.6 Full
SKU: NW-33102P
MPN: 33102P
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 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 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 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 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