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 33255P Metric Spring Plungers - Standard Lengths - Light Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 6.5 Initial x 13.5 Half x 20.0 Full
SKU: NW-33255P
MPN: 33255P
NORTHWESTERN TOOLS 33255SS Stainless Steel Metric Spring Plungers - M8 x 1.25 - With Locking Element
SKU: NW-33255SS
MPN: 33255SS
NORTHWESTERN TOOLS 33256 Metric Spring Plungers - Standard Lengths - Light Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 12.5 Initial x 22.5 Half x 32.0 Full
SKU: NW-33256
MPN: 33256
NORTHWESTERN TOOLS 33256P Metric Spring Plungers - Standard Lengths - Light Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 12.5 Initial x 22.5 Half x 32.0 Full
SKU: NW-33256P
MPN: 33256P
NORTHWESTERN TOOLS 33256SS Stainless Steel Metric Spring Plungers - M10 x 1.5 - With Locking Element
SKU: NW-33256SS
MPN: 33256SS
NORTHWESTERN TOOLS 33257 Metric Spring Plungers - Standard Lengths - Light Pressures - With Lock. Element - Heat Treated Steel Nose, End Force: 12.0 Initial x 26.5 Half x 41.5 Full
SKU: NW-33257
MPN: 33257
NORTHWESTERN TOOLS 33257P Metric Spring Plungers - Standard Lengths - Light Pressures - Without Lock. Element - Heat Treated Steel Nose, End Force: 12.0 Initial x 26.5 Half x 41.5 Full
SKU: NW-33257P
MPN: 33257P
NORTHWESTERN TOOLS 33257SS Stainless Steel Metric Spring Plungers - M12 x 1.75 - With Locking Element
SKU: NW-33257SS
MPN: 33257SS
NORTHWESTERN TOOLS 33301 Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 0.7 Initial x 1.5 Half x 2.3 Full
SKU: NW-33301
MPN: 33301
NORTHWESTERN TOOLS 33303 Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 1.3 Initial x 2.0 Half x 2.7 Full
SKU: NW-33303
MPN: 33303
NORTHWESTERN TOOLS 33303P Standard Length Spring Plungers - Light Pressures - Without Lock Element - White Delrin Nose, End Force: 1.3 Initial x 2.0 Half x 2.7 Full
SKU: NW-33303P
MPN: 33303P
NORTHWESTERN TOOLS 33304M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33304M
MPN: 33304M
NORTHWESTERN TOOLS 33304MP Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33304MP
MPN: 33304MP
NORTHWESTERN TOOLS 33305 Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33305
MPN: 33305
NORTHWESTERN TOOLS 33305A Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33305A
MPN: 33305A
NORTHWESTERN TOOLS 33305AP Standard Length Spring Plungers - Light Pressures - Without Lock Element - White Delrin Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33305AP
MPN: 33305AP
NORTHWESTERN TOOLS 33305P Standard Length Spring Plungers - Light Pressures - Without Lock Element - White Delrin Nose, End Force: 1.0 Initial x 2.5 Half x 4.0 Full
SKU: NW-33305P
MPN: 33305P
NORTHWESTERN TOOLS 33306M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33306M
MPN: 33306M
NORTHWESTERN TOOLS 33306MP Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33306MP
MPN: 33306MP
NORTHWESTERN TOOLS 33307 Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 1.5 Initial x 3.0 Half x 4.5 Full
SKU: NW-33307
MPN: 33307
NORTHWESTERN TOOLS 33307P Standard Length Spring Plungers - Light Pressures - Without Lock Element - White Delrin Nose, End Force: 1.5 Initial x 3.0 Half x 4.5 Full
SKU: NW-33307P
MPN: 33307P
NORTHWESTERN TOOLS 33308M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33308M
MPN: 33308M
NORTHWESTERN TOOLS 33308MP Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose
SKU: NW-33308MP
MPN: 33308MP
NORTHWESTERN TOOLS 33309 Standard Length Spring Plungers - Light Pressures - With Lock Element - White Delrin Nose, End Force: 2.8 Initial x 5.0 Half x 7.2 Full
SKU: NW-33309
MPN: 33309