Retaining Rings - External - Spiral Rings - Medium-Heavy Duty - Carbon Steel

Retaining Rings -> External -> Spiral Rings -> Medium-Heavy Duty -> Carbon Steel

There are 4 products in the sub-categories of Retaining Rings - External - Spiral Rings - Medium-Heavy Duty - Carbon Steel. Browse the Retaining Rings - External - Spiral Rings - Medium-Heavy Duty - Carbon Steel products table.

Category Details

A selection of Carbon Steel Medium-Heavy Duty Spiral Rings External Retaining Rings. AME / WST / RST - Spring Steel

  • An expanded range may be available on special order. Please enquire.
  • Originally designed to fit NAS50-51 grooves, this series is a popular OEM specification.
  • This two/three turn design is easier to install than the heavy duty RRN option.
  • Equivalent to Associated Spring: AME, Smalley: WST, Spirolox and Ramsey: RST

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Retaining Rings - External - Spiral Rings - Medium-Heavy Duty - Carbon Steel category on the MBA Minibearings main store.
Shaft Diameter (Ds) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip ID (A) Radial Wall (S) Approx. Groove Width (W) Indicative
Image
External Retaining Rings - 20.62x1.07x19.71 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
20.62
mm

(Equiv. 0.812 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
19.71
mm

(Equiv. 0.776 in.)
Approx. Loose Circlip ID (A)
19.38
mm
+ 0.00 / - 0.33
Radial Wall (S) Approx.
1.65
mm
+/- 0.10
Groove Width (W)
1.21
mm
+/- 0.08
External Retaining Rings - 20.62x1.07x19.71 mm - Spring Steel
Material: Carbon Spring Steel    Approx. Loose Clip OD: 22.68 +/- 0.04   Groove Depth (d): 0.46   
Additional stock available from USA subject to Prior Sale = 654
Part Number: RST-081 (PK-2)
65 units (130 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
$1.14 AUD
$1.36 AUD $1.14 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 65 available can be backordered.
Shaft Diameter (Ds) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip ID (A) Indicative
Image
External Retaining Rings - 20.62x1.07x19.71 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
20.62
mm

(Equiv. 0.812 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
19.71
mm

(Equiv. 0.776 in.)
Approx. Loose Circlip ID (A)
19.38
mm
+ 0.00 / - 0.33
External Retaining Rings - 20.62x1.07x19.71 mm - Spring Steel
Material: Carbon Spring Steel    Radial Wall (S) Approx.: 1.65 mm +/- 0.10    Groove Width (W): 1.21 mm +/- 0.08   Approx. Loose Clip OD: 22.68 +/- 0.04   Groove Depth (d): 0.46   
Additional stock available from USA subject to Prior Sale = 654
Part Number: RST-081 (PK-2)
65 units (130 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
$1.14 AUD
$1.36 AUD $1.14 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

65 units (130 pcs) Available Now. Backorder if more than 65.
External Retaining Rings - 57.15x1.99x54.49 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
57.15
mm

(Equiv. 2.25 in.)
Clip Thickness (T)
1.99
mm
+/- 0.08
(Equiv. 0.078 in.)
Groove Dia. (Dg)
54.49
mm

(Equiv. 2.145 in.)
Approx. Loose Circlip ID (A)
53.72
mm
+ 0.00 / - 0.64
Radial Wall (S) Approx.
3.58
mm
+/- 0.10
Groove Width (W)
2.25
mm
+/- 0.16
External Retaining Rings - 57.15x1.99x54.49 mm - Spring Steel
Material: Carbon Spring Steel    Approx. Loose Clip OD: 60.88 +/- 0.06   Groove Depth (d): 1.35   
Deleted Item. Available while stocks last.
Part Number: RST-225 (PK-3)
95 units (285 pcs) Available Now | Item Discontinued - Up to 95 may be ordered online. No backorders. Please contact us if you need a larger quantity
$2.50 AUD
$4.75 AUD $2.50 AUD
Priced, Stocked and Sold Per 3 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

95 units (285 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
External Retaining Rings - 57.15x1.99x54.49 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
57.15
mm

(Equiv. 2.25 in.)
Clip Thickness (T)
1.99
mm
+/- 0.08
(Equiv. 0.078 in.)
Groove Dia. (Dg)
54.49
mm

(Equiv. 2.145 in.)
Approx. Loose Circlip ID (A)
53.72
mm
+ 0.00 / - 0.64
External Retaining Rings - 57.15x1.99x54.49 mm - Spring Steel
Material: Carbon Spring Steel    Radial Wall (S) Approx.: 3.58 mm +/- 0.10    Groove Width (W): 2.25 mm +/- 0.16   Approx. Loose Clip OD: 60.88 +/- 0.06   Groove Depth (d): 1.35   
Deleted Item. Available while stocks last.
Part Number: RST-225 (PK-3)
95 units (285 pcs) Available Now | Item Discontinued - Up to 95 may be ordered online. No backorders. Please contact us if you need a larger quantity
$2.50 AUD
$4.75 AUD $2.50 AUD
Priced, Stocked and Sold Per 3 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

95 units (285 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
External Retaining Rings - 63.5x1.99x60.58 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
63.50
mm

(Equiv. 2.5 in.)
Clip Thickness (T)
1.99
mm
+/- 0.08
(Equiv. 0.078 in.)
Groove Dia. (Dg)
60.58
mm

(Equiv. 2.385 in.)
Approx. Loose Circlip ID (A)
59.69
mm
+ 0.00 / - 0.64
Radial Wall (S) Approx.
4.78
mm
+/- 0.13
Groove Width (W)
2.25
mm
+/- 0.15
External Retaining Rings - 63.5x1.99x60.58 mm - Spring Steel
Material: Carbon Spring Steel    Approx. Loose Clip OD: 69.25 +/- 0.06   Groove Depth (d): 1.47   
Additional stock available from USA subject to Prior Sale = 173
Part Number: RST-250 (Each)
3 Available Now | Further orders can be expected around Sun, Jan 25, 2026
$10.23 AUD
$10.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
External Retaining Rings - 63.5x1.99x60.58 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
63.50
mm

(Equiv. 2.5 in.)
Clip Thickness (T)
1.99
mm
+/- 0.08
(Equiv. 0.078 in.)
Groove Dia. (Dg)
60.58
mm

(Equiv. 2.385 in.)
Approx. Loose Circlip ID (A)
59.69
mm
+ 0.00 / - 0.64
External Retaining Rings - 63.5x1.99x60.58 mm - Spring Steel
Material: Carbon Spring Steel    Radial Wall (S) Approx.: 4.78 mm +/- 0.13    Groove Width (W): 2.25 mm +/- 0.15   Approx. Loose Clip OD: 69.25 +/- 0.06   Groove Depth (d): 1.47   
Additional stock available from USA subject to Prior Sale = 173
Part Number: RST-250 (Each)
3 Available Now | Further orders can be expected around Sun, Jan 25, 2026
$10.23 AUD
$10.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
External Retaining Rings - 120.65x2.82x115.57 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
120.65
mm

(Equiv. 4.75 in.)
Clip Thickness (T)
2.82
mm
+/- 0.08
(Equiv. 0.111 in.)
Groove Dia. (Dg)
115.57
mm

(Equiv. 4.55 in.)
Approx. Loose Circlip ID (A)
113.41
mm
+ 0.00 / - 1.02
Radial Wall (S) Approx.
6.35
mm
+/- 0.13
Groove Width (W)
3.12
mm
+/- 0.15
External Retaining Rings - 120.65x2.82x115.57 mm - Spring Steel
Material: Carbon Spring Steel    Approx. Loose Clip OD: 126.11 +/- 0.07   Groove Depth (d): 2.54   
Deleted Item. Available while stocks last.
Part Number: RST-475 (Each)
130 Available Now | Further orders can be expected around Wed, Apr 01, 2026
$12.00 AUD
$12.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 130 available can be backordered.
External Retaining Rings - 120.65x2.82x115.57 mm Spiral Rings - Carbon Spring Steel Spiral Ring
Shaft Diameter (Ds)
120.65
mm

(Equiv. 4.75 in.)
Clip Thickness (T)
2.82
mm
+/- 0.08
(Equiv. 0.111 in.)
Groove Dia. (Dg)
115.57
mm

(Equiv. 4.55 in.)
Approx. Loose Circlip ID (A)
113.41
mm
+ 0.00 / - 1.02
External Retaining Rings - 120.65x2.82x115.57 mm - Spring Steel
Material: Carbon Spring Steel    Radial Wall (S) Approx.: 6.35 mm +/- 0.13    Groove Width (W): 3.12 mm +/- 0.15   Approx. Loose Clip OD: 126.11 +/- 0.07   Groove Depth (d): 2.54   
Deleted Item. Available while stocks last.
Part Number: RST-475 (Each)
130 Available Now | Further orders can be expected around Wed, Apr 01, 2026
$12.00 AUD
$12.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

130 Available Now. Backorder if more than 130.