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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 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

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

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NORTHWESTERN TOOLS 33257SS Stainless Steel Metric Spring Plungers - M12 x 1.75 - With Locking Element

NORTHWESTERN TOOLS 33257SS Stainless Steel Metric Spring Plungers - M12 x 1.75 - With Locking Element

SKU: NW-33257SS
MPN: 33257SS

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NORTHWESTERN TOOLS 33300 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

NORTHWESTERN TOOLS 33300 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

SKU: NW-33300
MPN: 33300

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NORTHWESTERN TOOLS 33300H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33300H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33300H
MPN: 33300H

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NORTHWESTERN TOOLS 33300HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33300HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33300HP
MPN: 33300HP

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NORTHWESTERN TOOLS 33300P "Short" Spring Plungers - Light Spring Pressures - Without Lock. Ele.; End Pressures - Start: 0.5, 1/2: 1.0, Full:1.5

NORTHWESTERN TOOLS 33300P "Short" Spring Plungers - Light Spring Pressures - Without Lock. Ele.; End Pressures - Start: 0.5, 1/2: 1.0, Full:1.5

SKU: NW-33300P
MPN: 33300P

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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

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

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NORTHWESTERN TOOLS 33302P Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

NORTHWESTERN TOOLS 33302P Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

SKU: NW-33302P
MPN: 33302P

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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

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

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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

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

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NORTHWESTERN TOOLS 33304 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.75 Initial x 1.62 Half x 2.5 Full

NORTHWESTERN TOOLS 33304 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.75 Initial x 1.62 Half x 2.5 Full

SKU: NW-33304
MPN: 33304

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NORTHWESTERN TOOLS 33304H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33304H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33304H
MPN: 33304H

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NORTHWESTERN TOOLS 33304HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33304HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33304HP
MPN: 33304HP

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NORTHWESTERN TOOLS 33304M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

NORTHWESTERN TOOLS 33304M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

SKU: NW-33304M
MPN: 33304M

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NORTHWESTERN TOOLS 33304MP Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

NORTHWESTERN TOOLS 33304MP Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

SKU: NW-33304MP
MPN: 33304MP

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NORTHWESTERN TOOLS 33304P Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

NORTHWESTERN TOOLS 33304P Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 0.5 Initial x 1.0 Half x 1.5 Full

SKU: NW-33304P
MPN: 33304P

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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

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

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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

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

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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

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

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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

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

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NORTHWESTERN TOOLS 33306 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 1.0 Initial x 2.25 Half x 3.5 Full

NORTHWESTERN TOOLS 33306 Short Spring Plungers - Light Pressures - With Lock. Element - White Delrin Nose, End Force: 1.0 Initial x 2.25 Half x 3.5 Full

SKU: NW-33306
MPN: 33306

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NORTHWESTERN TOOLS 33306H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33306H Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33306H
MPN: 33306H

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NORTHWESTERN TOOLS 33306HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

NORTHWESTERN TOOLS 33306HP Hex Drive "Short" Steel Spring Plungers - Net lbs Per 100 - 1/2

SKU: NW-33306HP
MPN: 33306HP

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NORTHWESTERN TOOLS 33306M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

NORTHWESTERN TOOLS 33306M Metric Short Spring Plungers - Light Spring Pressures - Brown Delrin Nose

SKU: NW-33306M
MPN: 33306M

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