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 10502 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 1.0 Initial x 2.0 Final
SKU: NW-10502
MPN: 10502
NORTHWESTERN TOOLS 10502EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10502EX
MPN: 10502EX
NORTHWESTERN TOOLS 10503 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 1.25 Initial x 3.25 Final
SKU: NW-10503
MPN: 10503
NORTHWESTERN TOOLS 10503EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10503EX
MPN: 10503EX
NORTHWESTERN TOOLS 10504 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 1.5 Initial x 4.5 Final
SKU: NW-10504
MPN: 10504
NORTHWESTERN TOOLS 10504EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10504EX
MPN: 10504EX
NORTHWESTERN TOOLS 10506 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 2.5 Initial x 6.0 Final
SKU: NW-10506
MPN: 10506
NORTHWESTERN TOOLS 10506EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10506EX
MPN: 10506EX
NORTHWESTERN TOOLS 10508 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 4.0 Initial x 10.0 Final
SKU: NW-10508
MPN: 10508
NORTHWESTERN TOOLS 10508EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10508EX
MPN: 10508EX
NORTHWESTERN TOOLS 10510 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 5.0 Initial x 14.0 Final
SKU: NW-10510
MPN: 10510
NORTHWESTERN TOOLS 10510EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10510EX
MPN: 10510EX
NORTHWESTERN TOOLS 10512 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 8.0 Initial x 18.0 Final
SKU: NW-10512
MPN: 10512
NORTHWESTERN TOOLS 10512EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10512EX
MPN: 10512EX
NORTHWESTERN TOOLS 10514 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 0.5 Initial x 1.0 Final
SKU: NW-10514
MPN: 10514
NORTHWESTERN TOOLS 10515 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 1.25 Initial x 3.25 Final
SKU: NW-10515
MPN: 10515
NORTHWESTERN TOOLS 10516 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 0.75 Initial x 2.5 Final
SKU: NW-10516
MPN: 10516
NORTHWESTERN TOOLS 10518 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 1.5 Initial x 3.0 Final
SKU: NW-10518
MPN: 10518
NORTHWESTERN TOOLS 10520 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 2.0 Initial x 5.0 Final
SKU: NW-10520
MPN: 10520
NORTHWESTERN TOOLS 10522 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 2.5 Initial x 7.0 Final
SKU: NW-10522
MPN: 10522
NORTHWESTERN TOOLS 10524 Press Fit Spring Plungers - Light Pressure, Heat Treated Steel Nose - Zinc Plated Finish / Stainless Nose; End Force: 4.0 Initial x 9.0 Final
SKU: NW-10524
MPN: 10524
NORTHWESTERN TOOLS 10526 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Black Oxide Finish / Stainless Nose; End Force: 1.0 Initial x 2.0 Final
SKU: NW-10526
MPN: 10526
NORTHWESTERN TOOLS 10526EX Press Fit Spring Plungers with Extended Travel
SKU: NW-10526EX
MPN: 10526EX
NORTHWESTERN TOOLS 10527 Press Fit Spring Plungers - Heavy Pressure, Heated Treated Steel Nose - Stainless Steel / Stainless Nose; End Force: 1.25 Initial x 3.25 Final
SKU: NW-10527
MPN: 10527