Retaining Rings - Internal - Spiral Rings - Heavy Duty - Stainless Steel

Retaining Rings -> Internal -> Spiral Rings -> Heavy Duty -> Stainless Steel

There are 6 products in the sub-categories of Retaining Rings - Internal - Spiral Rings - Heavy Duty - Stainless Steel. Browse the Retaining Rings - Internal - Spiral Rings - Heavy Duty - Stainless Steel products table.

Category Details

A selection of Stainless Steel Heavy Duty Spiral Rings Internal Retaining Rings. Includes AHI / WHM / AS3215 / Spirolox RRN / MIL-R-27426B2 - Stainless Steel.

  • An expanded range may be available on special order. Please enquire.
  • Heavy duty design for use with NAS669-670 deep grooves in applications like double row and tapered roller bearings.
  • Requires no tools for removal.
  • Equivalent to Associated Spring: AHI, Smalley: WHM, Spirolox and Ramsey: RRN, Aerospace AS3215, MIL-R-27426B2

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Retaining Rings - Internal - Spiral Rings - Heavy Duty - Stainless Steel category on the Small Parts & Bearings online store.
Housing Bore (B) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip OD (Dr) Radial Wall (S) Approx. Groove Width (W) Indicative
Image
Internal Retaining Rings - 12.7x0.89x13.46 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
12.70
mm

(Equiv. 0.5 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
13.46
mm

(Equiv. 0.53 in.)
Approx. Loose Circlip OD (Dr)
13.55
mm
+ 0.33 / - 0.00
Radial Wall (S) Approx.
1.14
mm
+/- 0.10
Groove Width (W)
1.03
mm
+/- 0.05
Internal Retaining Rings - 12.7x0.89x13.46 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 11.27 +/- 0.04   Groove Depth (d): 0.38   
Additional stock available from USA subject to Prior Sale = 5840
Part Number: RRN-050-S02 (PK-9)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$11.59 AUD
$13.91 AUD $11.59 AUD
Priced, Stocked and Sold Per 9 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Housing Bore (B) Clip Thickness (T) Groove Dia. (Dg) Approx. Loose Circlip OD (Dr) Indicative
Image
Internal Retaining Rings - 12.7x0.89x13.46 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
12.70
mm

(Equiv. 0.5 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
13.46
mm

(Equiv. 0.53 in.)
Approx. Loose Circlip OD (Dr)
13.55
mm
+ 0.33 / - 0.00
Internal Retaining Rings - 12.7x0.89x13.46 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): 1.03 mm +/- 0.05   Approx. Loose Clip ID: 11.27 +/- 0.04   Groove Depth (d): 0.38   
Additional stock available from USA subject to Prior Sale = 5840
Part Number: RRN-050-S02 (PK-9)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$11.59 AUD
$13.91 AUD $11.59 AUD
Priced, Stocked and Sold Per 9 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 15.88x0.89x16.89 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
15.88
mm

(Equiv. 0.625 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
16.89
mm

(Equiv. 0.665 in.)
Approx. Loose Circlip OD (Dr)
16.94
mm
+ 0.33 / - 0.00
Radial Wall (S) Approx.
1.40
mm
+/- 0.10
Groove Width (W)
1.03
mm
+/- 0.05
Internal Retaining Rings - 15.88x0.89x16.89 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 14.14 +/- 0.04   Groove Depth (d): 0.51   
Part Number: RRN-062-S02 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 06, 2026
$454.32 AUD
$545.18 AUD $454.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 15.88x0.89x16.89 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
15.88
mm

(Equiv. 0.625 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
16.89
mm

(Equiv. 0.665 in.)
Approx. Loose Circlip OD (Dr)
16.94
mm
+ 0.33 / - 0.00
Internal Retaining Rings - 15.88x0.89x16.89 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): 1.03 mm +/- 0.05   Approx. Loose Clip ID: 14.14 +/- 0.04   Groove Depth (d): 0.51   
Part Number: RRN-062-S02 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Fri, Feb 06, 2026
$454.32 AUD
$545.18 AUD $454.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 19.05x0.89x20.22 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
19.05
mm

(Equiv. 0.75 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
20.22
mm

(Equiv. 0.796 in.)
Approx. Loose Circlip OD (Dr)
20.33
mm
+ 0.33 / - 0.00
Radial Wall (S) Approx.
1.65
mm
+/- 0.10
Groove Width (W)
1.03
mm
+/- 0.05
Internal Retaining Rings - 19.05x0.89x20.22 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 17.03 +/- 0.04   Groove Depth (d): 0.58   
Additional stock available from USA subject to Prior Sale = 117
Part Number: RRN-075-S02 (PK-3)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$21.95 AUD
$26.35 AUD $21.95 AUD
Priced, Stocked and Sold Per 3 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 19.05x0.89x20.22 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
19.05
mm

(Equiv. 0.75 in.)
Clip Thickness (T)
0.89
mm
+/- 0.05
(Equiv. 0.035 in.)
Groove Dia. (Dg)
20.22
mm

(Equiv. 0.796 in.)
Approx. Loose Circlip OD (Dr)
20.33
mm
+ 0.33 / - 0.00
Internal Retaining Rings - 19.05x0.89x20.22 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): 1.03 mm +/- 0.05   Approx. Loose Clip ID: 17.03 +/- 0.04   Groove Depth (d): 0.58   
Additional stock available from USA subject to Prior Sale = 117
Part Number: RRN-075-S02 (PK-3)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$21.95 AUD
$26.35 AUD $21.95 AUD
Priced, Stocked and Sold Per 3 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 25.4x1.07x27.08 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
25.40
mm

(Equiv. 1 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
27.08
mm

(Equiv. 1.066 in.)
Approx. Loose Circlip OD (Dr)
27.10
mm
+ 0.33 / - 0.00
Radial Wall (S) Approx.
2.16
mm
+/- 0.10
Groove Width (W)
1.21
mm
+/- 0.07
Internal Retaining Rings - 25.4x1.07x27.08 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 22.78 +/- 0.04   Groove Depth (d): 0.84   
Additional stock available from USA subject to Prior Sale = 4480
Part Number: RRN-100-S02 (PK-5)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$15.59 AUD
$15.59 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 25.4x1.07x27.08 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
25.40
mm

(Equiv. 1 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
27.08
mm

(Equiv. 1.066 in.)
Approx. Loose Circlip OD (Dr)
27.10
mm
+ 0.33 / - 0.00
Internal Retaining Rings - 25.4x1.07x27.08 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): 1.21 mm +/- 0.07   Approx. Loose Clip ID: 22.78 +/- 0.04   Groove Depth (d): 0.84   
Additional stock available from USA subject to Prior Sale = 4480
Part Number: RRN-100-S02 (PK-5)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$15.59 AUD
$15.59 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 25.98x1.07x27.72 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
25.98
mm

(Equiv. 1.023 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
27.72
mm

(Equiv. 1.091 in.)
Approx. Loose Circlip OD (Dr)
27.72
mm
+ 0.33 / - 0.00
Radial Wall (S) Approx.
2.16
mm
+/- 0.10
Groove Width (W)
1.21
mm
+/- 0.07
Internal Retaining Rings - 25.98x1.07x27.72 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 23.4 +/- 0.04   Groove Depth (d): 0.86   
Additional stock available from USA subject to Prior Sale = 152
Part Number: RRN-102-S02 (PK-2)
5 units (10 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
$9.32 AUD
$11.18 AUD $9.32 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Internal Retaining Rings - 25.98x1.07x27.72 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
25.98
mm

(Equiv. 1.023 in.)
Clip Thickness (T)
1.07
mm
+/- 0.05
(Equiv. 0.042 in.)
Groove Dia. (Dg)
27.72
mm

(Equiv. 1.091 in.)
Approx. Loose Circlip OD (Dr)
27.72
mm
+ 0.33 / - 0.00
Internal Retaining Rings - 25.98x1.07x27.72 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): 1.21 mm +/- 0.07   Approx. Loose Clip ID: 23.4 +/- 0.04   Groove Depth (d): 0.86   
Additional stock available from USA subject to Prior Sale = 152
Part Number: RRN-102-S02 (PK-2)
5 units (10 pcs) Available Now | Further orders can be expected around Sun, Jan 25, 2026
$9.32 AUD
$11.18 AUD $9.32 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (10 pcs) Available Now. Backorder if more than 5.
Internal Retaining Rings - 50.8x1.58x53.9 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
50.80
mm

(Equiv. 2 in.)
Clip Thickness (T)
1.58
mm
+/- 0.08
(Equiv. 0.062 in.)
Groove Dia. (Dg)
53.90
mm

(Equiv. 2.122 in.)
Approx. Loose Circlip OD (Dr)
54.20
mm
+ 0.51 / - 0.00
Radial Wall (S) Approx.
4.01
mm
+/- 0.10
Groove Width (W)
1.78
mm
+/- 0.13
Internal Retaining Rings - 50.8x1.58x53.9 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Approx. Loose Clip ID: 46.18 +/- 0.05   Groove Depth (d): 1.55   
Additional stock available from USA subject to Prior Sale = 49
Part Number: RRN-200-S02 (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$13.32 AUD
$15.98 AUD $13.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Internal Retaining Rings - 50.8x1.58x53.9 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Housing Bore (B)
50.80
mm

(Equiv. 2 in.)
Clip Thickness (T)
1.58
mm
+/- 0.08
(Equiv. 0.062 in.)
Groove Dia. (Dg)
53.90
mm

(Equiv. 2.122 in.)
Approx. Loose Circlip OD (Dr)
54.20
mm
+ 0.51 / - 0.00
Internal Retaining Rings - 50.8x1.58x53.9 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Radial Wall (S) Approx.: 4.01 mm +/- 0.10    Groove Width (W): 1.78 mm +/- 0.13   Approx. Loose Clip ID: 46.18 +/- 0.05   Groove Depth (d): 1.55   
Additional stock available from USA subject to Prior Sale = 49
Part Number: RRN-200-S02 (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 25, 2026
$13.32 AUD
$15.98 AUD $13.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.