Collection: Plungers - Spring - Pull Ring - Locking

Plungers -> Spring -> Pull Ring -> Locking

There are 2 products in the sub-categories of Plungers - Spring - Pull Ring - Locking. Browse the Plungers - Spring - Pull Ring - Locking products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of spring plungers.
  • A compact mechanical component with a spring-loaded ball or pin inside a housing that applies consistent, predictable force. Internal spring compresses when pressure is applied to the ball or pin, allowing it to settle into designated positions or recess.
  • Provides a reliable holding or locating mechanism in various industrial applications where precise alignment or securing of parts is needed.
  • Also known as ball plungers or spring-loaded pins.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Plungers - Spring - Pull Ring - Locking category on the MBA Minibearings main store.
Thread Size (A) Thread Length (B) Initial Pressure (F1) Final Pressure (F2) Pin Diameter (F) Pin Length (C) Indicative
Image
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
30.2
mm

(Equiv. 1.189 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Pin Diameter (F)
4.0
mm
Pin Length (C)
6.4
mm
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Steel Body with Acetal
Material: Steel Body with Acetal   
Category: Plungers - Spring - Pull Ring - Locking - Steel-Acetal
Part Number: PLST-064C-302-RACL-011 (PK-250)
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Steel Body with Acetal Plunger
Out of Stock | Backorder Now | Orders can be expected around Wed, Dec 31, 2025
Regular price $14,499.68 AUD
Regular price Sale price $14,499.68 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A) Thread Length (B) Initial Pressure (F1) Final Pressure (F2) Indicative
Image
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
30.2
mm

(Equiv. 1.189 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Steel Body with Acetal
Material: Steel Body with Acetal    Pin Diameter (F): 4.0 mm    Pin Length (C): 6.4 mm   
Category: Plungers - Spring - Pull Ring - Locking - Steel-Acetal
Part Number: PLST-064C-302-RACL-011 (PK-250)
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Steel Body with Acetal Plunger
Out of Stock | Backorder Now | Orders can be expected around Wed, Dec 31, 2025
Regular price $14,499.68 AUD
Regular price Sale price $14,499.68 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
30.2
mm

(Equiv. 1.189 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Pin Diameter (F)
4.0
mm
Pin Length (C)
6.4
mm
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Stainless Steel Body with Acetal
Material: Stainless Steel Body with Acetal   
Category: Plungers - Spring - Pull Ring - Locking - Stainless-Acetal
Part Number: PLST-064C-302-RASL-011 (PK-250)
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Stainless Steel Body with Acetal Plunger
Out of Stock | Backorder Now | Orders can be expected around Wed, Dec 31, 2025
Regular price $15,817.86 AUD
Regular price Sale price $15,817.86 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size (A)
1/4-20 UNC (6.35mm)

Thread Length (B)
30.2
mm

(Equiv. 1.189 in.)
Initial Pressure (F1)
4.5
N
Final Pressure (F2)
11.1
N
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Stainless Steel Body with Acetal
Material: Stainless Steel Body with Acetal    Pin Diameter (F): 4.0 mm    Pin Length (C): 6.4 mm   
Category: Plungers - Spring - Pull Ring - Locking - Stainless-Acetal
Part Number: PLST-064C-302-RASL-011 (PK-250)
Spring Plungers - 1/4-20 UNC - 6.35mm - 30.2 mm - 4.5 N Pull Ring - Stainless Steel Body with Acetal Plunger
Out of Stock | Backorder Now | Orders can be expected around Wed, Dec 31, 2025
Regular price $15,817.86 AUD
Regular price Sale price $15,817.86 AUD
Priced, Stocked and Sold Per 250 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.