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 33154SS Stainless Steel Metric Spring Plungers - M6 x 1.0 - With Locking Element
SKU: NW-33154SS
MPN: 33154SS
NORTHWESTERN TOOLS 33155 Metric Spring Plungers - Standard Lengths - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 13.5 Initial x 40.0 Half x 67.0 Full
SKU: NW-33155
MPN: 33155
NORTHWESTERN TOOLS 33155P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 13.5 Initial x 40.0 Half x 67.0 Full
SKU: NW-33155P
MPN: 33155P
NORTHWESTERN TOOLS 33155SS Stainless Steel Metric Spring Plungers - M8 x 1.25 - With Locking Element
SKU: NW-33155SS
MPN: 33155SS
NORTHWESTERN TOOLS 33156 Metric Spring Plungers - Standard Lengths - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 24.5 Initial x 44.5 Half x 64.5 Full
SKU: NW-33156
MPN: 33156
NORTHWESTERN TOOLS 33156P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 24.5 Initial x 44.5 Half x 64.5 Full
SKU: NW-33156P
MPN: 33156P
NORTHWESTERN TOOLS 33156SS Stainless Steel Metric Spring Plungers - M10 x 1.5 - With Locking Element
SKU: NW-33156SS
MPN: 33156SS
NORTHWESTERN TOOLS 33157 Metric Spring Plungers - Standard Lengths - Heavy Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 29.5 Initial x 53.5 Half x 77.5 Full
SKU: NW-33157
MPN: 33157
NORTHWESTERN TOOLS 33157P Metric Spring Plungers - Standard Lengths - Heavy Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 29.5 Initial x 53.5 Half x 77.5 Full
SKU: NW-33157P
MPN: 33157P
NORTHWESTERN TOOLS 33157SS Stainless Steel Metric Spring Plungers - M12 x 1.75 - With Locking Element
SKU: NW-33157SS
MPN: 33157SS
NORTHWESTERN TOOLS 33201 Standard Length Spring Plungers - Light Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full
SKU: NW-33201
MPN: 33201
NORTHWESTERN TOOLS 33201P Standard Length Spring Plungers - Light Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full
SKU: NW-33201P
MPN: 33201P
NORTHWESTERN TOOLS 33202 Standard Length Spring Plungers - Light Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 0.7 Initial x 1.5 Half x 2.3 Full
SKU: NW-33202
MPN: 33202
NORTHWESTERN TOOLS 33202P Standard Length Spring Plungers - Light Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 0.7 Initial x 1.5 Half x 2.3 Full
SKU: NW-33202P
MPN: 33202P
NORTHWESTERN TOOLS 33203M Metric Short Spring Plungers - Light Spring Pressures - Heat Treated Zinc Plated Steel Nose
SKU: NW-33203M
MPN: 33203M
NORTHWESTERN TOOLS 33203MP Metric Short Spring Plungers - Light Spring Pressures - Heat Treated Zinc Plated Steel Nose
SKU: NW-33203MP
MPN: 33203MP
NORTHWESTERN TOOLS 33204 Standard Length Spring Plungers - Light Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.3 Initial x 2.0 Half x 2.7 Full
SKU: NW-33204
MPN: 33204
NORTHWESTERN TOOLS 33204P Standard Length Spring Plungers - Light Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.3 Initial x 2.0 Half x 2.7 Full
SKU: NW-33204P
MPN: 33204P
NORTHWESTERN TOOLS 33205M Metric Short Spring Plungers - Light Spring Pressures - Heat Treated Zinc Plated Steel Nose
SKU: NW-33205M
MPN: 33205M
NORTHWESTERN TOOLS 33205MP Metric Short Spring Plungers - Light Spring Pressures - Heat Treated Zinc Plated Steel Nose
SKU: NW-33205MP
MPN: 33205MP
NORTHWESTERN TOOLS 33206 Standard Length Spring Plungers - Light Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33206
MPN: 33206
NORTHWESTERN TOOLS 33206P Standard Length Spring Plungers - Light Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33206P
MPN: 33206P
NORTHWESTERN TOOLS 33207 Standard Length Spring Plungers - Light Pressures - With Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33207
MPN: 33207
NORTHWESTERN TOOLS 33207P Standard Length Spring Plungers - Light Pressures - Without Lock Element - Heat Treated Black Oxide Steel Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33207P
MPN: 33207P