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
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)
Internal Retaining Rings - 12.7x0.89x13.46 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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
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)
Internal Retaining Rings - 12.7x0.89x13.46 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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)
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)
Internal Retaining Rings - 15.88x0.89x16.89 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Thu, Jan 15, 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.
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)
Internal Retaining Rings - 15.88x0.89x16.89 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Thu, Jan 15, 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.
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)
Internal Retaining Rings - 19.05x0.89x20.22 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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.
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)
Internal Retaining Rings - 19.05x0.89x20.22 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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.
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)
Internal Retaining Rings - 25.4x1.07x27.08 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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.
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)
Internal Retaining Rings - 25.4x1.07x27.08 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 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.
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)
Internal Retaining Rings - 25.98x1.07x27.72 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
5 units (10 pcs) Available Now | Further orders can be expected around Sat, Jan 03, 2026
$9.41 AUD
$11.29 AUD $9.41 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.
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)
Internal Retaining Rings - 25.98x1.07x27.72 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
5 units (10 pcs) Available Now | Further orders can be expected around Sat, Jan 03, 2026
$9.41 AUD
$11.29 AUD $9.41 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.
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)
Internal Retaining Rings - 50.8x1.58x53.9 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 2026
$13.32 AUD
$15.98 AUD $13.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
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)
Internal Retaining Rings - 50.8x1.58x53.9 mm Spiral Rings - Stainless Steel 302/304 Similar to A2, 18-8 Spiral Ring
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 03, 2026
$13.32 AUD
$15.98 AUD $13.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.