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

Retaining Rings -> External -> Spiral Rings -> Medium Duty -> Stainless Steel

There are 5 products in the sub-categories of Retaining Rings - External - Spiral Rings - Medium Duty - Stainless Steel. Browse the Retaining Rings - External - Spiral Rings - Medium Duty - Stainless Steel products table.

Category Details

A selection of Stainless Steel Medium Duty Spiral Rings External Retaining Rings. AE / WS / AS3218 / RS / MIL-R-27426A1 - Stainless Steel.

  • An expanded range may be available on special order. Please enquire.
  • Popular series that will accommodate light and medium bearing series thrust loads.
  • Available in military and aerospace specifications.
  • Equivalent to Associated Spring: AE, Smalley: WS, Spirolox and Ramsey: RS, Aerospace AS3218, MIL-R-27426A1

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Retaining Rings - External - Spiral Rings - Medium Duty - Stainless 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 - 12.7x0.64x12.04 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
12.70
mm

(Equiv. 0.5 in.)
Clip Thickness (T)
0.64
mm
+/- 0.06
(Equiv. 0.025 in.)
Groove Dia. (Dg)
12.04
mm

(Equiv. 0.474 in.)
Approx. Loose Circlip ID (A)
11.94
mm
+ 0.00 / - 0.33
Radial Wall (S) Approx.
1.14
mm
+/- 0.10
Groove Width (W)
0.80
mm
+/- 0.05
External Retaining Rings - 12.7x0.64x12.04 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 14.22 +/- 0.04   Groove Depth (d): 0.33   
Additional stock available from USA subject to Prior Sale = 7370
Part Number: RS-050-S02 (PK-8)
12 units (96 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$9.95 AUD
$11.95 AUD $9.95 AUD
Priced, Stocked and Sold Per 8 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 12 available can be backordered.
Shaft Diameter (Ds) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip ID (A) Indicative
Image
External Retaining Rings - 12.7x0.64x12.04 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
12.70
mm

(Equiv. 0.5 in.)
Clip Thickness (T)
0.64
mm
+/- 0.06
(Equiv. 0.025 in.)
Groove Dia. (Dg)
12.04
mm

(Equiv. 0.474 in.)
Approx. Loose Circlip ID (A)
11.94
mm
+ 0.00 / - 0.33
External Retaining Rings - 12.7x0.64x12.04 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 1.14 mm +/- 0.10    Groove Width (W): 0.80 mm +/- 0.05   Approx. Loose Clip OD: 14.22 +/- 0.04   Groove Depth (d): 0.33   
Additional stock available from USA subject to Prior Sale = 7370
Part Number: RS-050-S02 (PK-8)
12 units (96 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$9.95 AUD
$11.95 AUD $9.95 AUD
Priced, Stocked and Sold Per 8 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

12 units (96 pcs) Available Now. Backorder if more than 12.
External Retaining Rings - 15.88x0.64x15.1 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
15.88
mm

(Equiv. 0.625 in.)
Clip Thickness (T)
0.64
mm
+/- 0.06
(Equiv. 0.025 in.)
Groove Dia. (Dg)
15.10
mm

(Equiv. 0.594 in.)
Approx. Loose Circlip ID (A)
14.93
mm
+ 0.00 / - 0.33
Radial Wall (S) Approx.
1.40
mm
+/- 0.10
Groove Width (W)
0.80
mm
+/- 0.06
External Retaining Rings - 15.88x0.64x15.1 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 17.73 +/- 0.04   Groove Depth (d): 0.41   
Additional stock available from USA subject to Prior Sale = 4501
Part Number: RS-062-S02 (PK-5)
19 units (95 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$20.77 AUD
$20.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 19 available can be backordered.
External Retaining Rings - 15.88x0.64x15.1 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
15.88
mm

(Equiv. 0.625 in.)
Clip Thickness (T)
0.64
mm
+/- 0.06
(Equiv. 0.025 in.)
Groove Dia. (Dg)
15.10
mm

(Equiv. 0.594 in.)
Approx. Loose Circlip ID (A)
14.93
mm
+ 0.00 / - 0.33
External Retaining Rings - 15.88x0.64x15.1 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 1.40 mm +/- 0.10    Groove Width (W): 0.80 mm +/- 0.06   Approx. Loose Clip OD: 17.73 +/- 0.04   Groove Depth (d): 0.41   
Additional stock available from USA subject to Prior Sale = 4501
Part Number: RS-062-S02 (PK-5)
19 units (95 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$20.77 AUD
$20.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

19 units (95 pcs) Available Now. Backorder if more than 19.
External Retaining Rings - 19.05x0.79x18.27 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
19.05
mm

(Equiv. 0.75 in.)
Clip Thickness (T)
0.79
mm
+/- 0.05
(Equiv. 0.031 in.)
Groove Dia. (Dg)
18.27
mm

(Equiv. 0.719 in.)
Approx. Loose Circlip ID (A)
17.91
mm
+ 0.00 / - 0.33
Radial Wall (S) Approx.
1.65
mm
+/- 0.10
Groove Width (W)
0.95
mm
+/- 0.07
External Retaining Rings - 19.05x0.79x18.27 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): 0.41   
Additional stock available from USA subject to Prior Sale = 5770
Part Number: RS-075-S02 (PK-5)
99 units (495 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$1.23 AUD
$1.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 99 available can be backordered.
External Retaining Rings - 19.05x0.79x18.27 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
19.05
mm

(Equiv. 0.75 in.)
Clip Thickness (T)
0.79
mm
+/- 0.05
(Equiv. 0.031 in.)
Groove Dia. (Dg)
18.27
mm

(Equiv. 0.719 in.)
Approx. Loose Circlip ID (A)
17.91
mm
+ 0.00 / - 0.33
External Retaining Rings - 19.05x0.79x18.27 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 1.65 mm +/- 0.10    Groove Width (W): 0.95 mm +/- 0.07   Approx. Loose Clip OD: 21.21 +/- 0.04   Groove Depth (d): 0.41   
Additional stock available from USA subject to Prior Sale = 5770
Part Number: RS-075-S02 (PK-5)
99 units (495 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$1.23 AUD
$1.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

99 units (495 pcs) Available Now. Backorder if more than 99.
External Retaining Rings - 31.75x1.09x30.53 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
31.75
mm

(Equiv. 1.25 in.)
Clip Thickness (T)
1.09
mm
+/- 0.05
(Equiv. 0.043 in.)
Groove Dia. (Dg)
30.53
mm

(Equiv. 1.202 in.)
Approx. Loose Circlip ID (A)
29.85
mm
+ 0.00 / - 0.38
Radial Wall (S) Approx.
2.16
mm
+/- 0.10
Groove Width (W)
1.27
mm
+/- 0.10
External Retaining Rings - 31.75x1.09x30.53 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 34.17 +/- 0.05   Groove Depth (d): 0.61   
Additional stock available from USA subject to Prior Sale = 248
Part Number: RS-125-S02 (Each)
15 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.68 AUD
$4.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 15 available can be backordered.
External Retaining Rings - 31.75x1.09x30.53 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
31.75
mm

(Equiv. 1.25 in.)
Clip Thickness (T)
1.09
mm
+/- 0.05
(Equiv. 0.043 in.)
Groove Dia. (Dg)
30.53
mm

(Equiv. 1.202 in.)
Approx. Loose Circlip ID (A)
29.85
mm
+ 0.00 / - 0.38
External Retaining Rings - 31.75x1.09x30.53 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 2.16 mm +/- 0.10    Groove Width (W): 1.27 mm +/- 0.10   Approx. Loose Clip OD: 34.17 +/- 0.05   Groove Depth (d): 0.61   
Additional stock available from USA subject to Prior Sale = 248
Part Number: RS-125-S02 (Each)
15 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.68 AUD
$4.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

15 Available Now. Backorder if more than 15.
External Retaining Rings - 73.03x1.25x70.64 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
73.03
mm

(Equiv. 2.875 in.)
Clip Thickness (T)
1.25
mm
+/- 0.08
(Equiv. 0.049 in.)
Groove Dia. (Dg)
70.64
mm

(Equiv. 2.781 in.)
Approx. Loose Circlip ID (A)
68.65
mm
+ 0.00 / - 0.76
Radial Wall (S) Approx.
4.27
mm
+/- 0.13
Groove Width (W)
1.47
mm
+/- 0.15
External Retaining Rings - 73.03x1.25x70.64 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip OD: 77.19 +/- 0.05   Groove Depth (d): 1.19   
Deleted Item. Available while stocks last.
Part Number: RS-287-S02 (Each)
16 Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

16 Available Now. These are priced to quit. Please contact us for a quote if you require more.
External Retaining Rings - 73.03x1.25x70.64 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Shaft Diameter (Ds)
73.03
mm

(Equiv. 2.875 in.)
Clip Thickness (T)
1.25
mm
+/- 0.08
(Equiv. 0.049 in.)
Groove Dia. (Dg)
70.64
mm

(Equiv. 2.781 in.)
Approx. Loose Circlip ID (A)
68.65
mm
+ 0.00 / - 0.76
External Retaining Rings - 73.03x1.25x70.64 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 4.27 mm +/- 0.13    Groove Width (W): 1.47 mm +/- 0.15   Approx. Loose Clip OD: 77.19 +/- 0.05   Groove Depth (d): 1.19   
Deleted Item. Available while stocks last.
Part Number: RS-287-S02 (Each)
16 Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

16 Available Now. These are priced to quit. Please contact us for a quote if you require more.