Retaining Rings - External - Spiral Rings - Medium-Heavy - Stainless Steel

2 Products in this selection
  • AME / WST / RST - Stainless Steel.
  • 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
Additional resources:
Spiral Rings and Snap Rings PDF
A more concise listing may be found on the Smallparts store at Retaining Rings - External - Spiral Rings - Medium-Heavy - Stainless Steel. Smallparts promote the most popular MBA products.
Shaft Diameter (Ds) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip ID (A) Radial Wall (S) min/max Groove Width (W) Indicative
Image
Shaft Diameter (Ds)
19.05
mm

(0.75 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(0.042 in.)
Groove Dia. (Dg)
18.16
mm

(0.715 in.)
Approx. Loose Circlip ID (A)
17.91
mm
+ 0.00 / - 0.33
Radial Wall (S) min/max
1.65
mm
+/- 0.10
Groove Width (W)
1.21
mm
+/- 0.08
External Retaining Rings - 19.05x1.07x18.16 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 21.21 +/- 0.04   Groove Depth (d): 0.46   
Part Number: RST-075-S02 (25 Pcs) External Retaining Rings - 19.05x1.07x18.16 mm - Stainless Steel 302/304 Similar to A2, 18-8
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 07, 2025
$155.23 AUD
$155.23 AUD
Per 25
Shaft Diameter (Ds) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip ID (A) Indicative
Image
Shaft Diameter (Ds)
19.05
mm

(0.75 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(0.042 in.)
Groove Dia. (Dg)
18.16
mm

(0.715 in.)
Approx. Loose Circlip ID (A)
17.91
mm
+ 0.00 / - 0.33
External Retaining Rings - 19.05x1.07x18.16 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) min/max: 1.65 mm +/- 0.10    Groove Width (W): 1.21 mm +/- 0.08   Approx. Loose Clip OD: 21.21 +/- 0.04   Groove Depth (d): 0.46   
Part Number: RST-075-S02 (25 Pcs) External Retaining Rings - 19.05x1.07x18.16 mm - Stainless Steel 302/304 Similar to A2, 18-8
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 07, 2025
$155.23 AUD
$155.23 AUD
Per 25
View the product page first if you are unsure.
Shaft Diameter (Ds)
31.75
mm

(1.25 in.)
Clip Thickness (T)
1.27
mm
+/- 0.05
(0.05 in.)
Groove Dia. (Dg)
30.35
mm

(1.195 in.)
Approx. Loose Circlip ID (A)
29.85
mm
+ 0.00 / - 0.38
Radial Wall (S) min/max
2.36
mm
+/- 0.10
Groove Width (W)
1.47
mm
+/- 0.10
External Retaining Rings - 31.75x1.27x30.35 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 34.57 +/- 0.05   Groove Depth (d): 0.71   
Part Number: RST-125-S02 External Retaining Rings - 31.75x1.27x30.35 mm - Stainless Steel 302/304 Similar to A2, 18-8
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 07, 2025
$6.23 AUD
$6.23 AUD
Each
Shaft Diameter (Ds)
31.75
mm

(1.25 in.)
Clip Thickness (T)
1.27
mm
+/- 0.05
(0.05 in.)
Groove Dia. (Dg)
30.35
mm

(1.195 in.)
Approx. Loose Circlip ID (A)
29.85
mm
+ 0.00 / - 0.38
External Retaining Rings - 31.75x1.27x30.35 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) min/max: 2.36 mm +/- 0.10    Groove Width (W): 1.47 mm +/- 0.10   Approx. Loose Clip OD: 34.57 +/- 0.05   Groove Depth (d): 0.71   
Part Number: RST-125-S02 External Retaining Rings - 31.75x1.27x30.35 mm - Stainless Steel 302/304 Similar to A2, 18-8
Out of Stock | Backorder Now | Orders can be expected around Sat, Jun 07, 2025
$6.23 AUD
$6.23 AUD
Each
View the product page first if you are unsure.