Filter by
ID
OD
Ring Thickness
Groove Diameter
Ring OD
Groove Width
Ring ID
Specifications Met
RoHS
Thrust Load Capacity
Minimum Hardness
DFARS Specialty Metals
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
REACH
Export Control Classification Number (ECCN)
Tight-Clearance Inverted Internal Retaining Rings
 |
The lugs on these rings point outward, so they won't snag on other parts and have better clearance than standard internal rings. Shaped in the most common style, they are tapered so the thickest section is opposite their opening for a secure 360-degree hold. Squeeze with retaining ring pliers and release into a groove inside a bore or housing.
Ring OD is measured with the ring uninstalled.
Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.
Retaining Rings | Pliers | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Groove | Ring | |||||||||||||
For ID | Dia. | Wd. | OD | Thk. | Thrust Load Cap., lbf | Min. Hardness | Specs. Met. | Pkg. Qty. | Pkg. | Each | ||||
Phosphate-Coated Carbon Steel | ||||||||||||||
| 5/8" | 0.665" | 0.029" | 0.675" | 0.025" | 1,010 | Rockwell C48 | ASME B18.27.4 | 50 | 90442A299 | 000000 | 5449A91 | 000000 | ||
| 3/4" | 0.796" | 0.039" | 0.808" | 0.035" | 1,670 | Rockwell C48 | ASME B18.27.4 | 50 | 90442A346 | 00000 | 5449A91 | 00000 | ||
| 13/16" | 0.862" | 0.046" | 0.877" | 0.042" | 2,630 | Rockwell C47 | ASME B18.27.4 | 50 | 90442A361 | 00000 | 5449A91 | 00000 | ||
| 7/8" | 0.931" | 0.046" | 0.944" | 0.042" | 2,890 | Rockwell C47 | ASME B18.27.4 | 50 | 90442A371 | 00000 | 5449A91 | 00000 | ||
| 15/16" | 1" | 0.046" | 1.015" | 0.042" | 3,140 | Rockwell C47 | ASME B18.27.4 | 50 | 90442A383 | 00000 | 5449A91 | 00000 | ||
| 1" | 1.066" | 0.046" | 1.081" | 0.042" | 3,350 | Rockwell C47 | ASME B18.27.4 | 50 | 90442A509 | 00000 | 5449A91 | 00000 | ||
| 1 1/16" | 1.13" | 0.056" | 1.15" | 0.05" | 4,210 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A525 | 0000 | 5449A92 | 00000 | ||
| 1 1/8" | 1.197" | 0.056" | 1.217" | 0.05" | 4,460 | Rockwell C47 | ASME B18.27.4 | 50 | 90442A115 | 00000 | 5449A92 | 00000 | ||
| 1 3/16" | 1.262" | 0.056" | 1.283" | 0.05" | 4,720 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A534 | 0000 | 5449A92 | 00000 | ||
| 1 1/4" | 1.33" | 0.056" | 1.351" | 0.05" | 4,970 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A545 | 0000 | 5449A92 | 00000 | ||
| 1 5/16" | 1.396" | 0.056" | 1.418" | 0.05" | 5,220 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A638 | 0000 | 5449A92 | 00000 | ||
| 1 3/8" | 1.461" | 0.056" | 1.486" | 0.05" | 5,480 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A649 | 00000 | 5449A92 | 00000 | ||
| 1 7/16" | 1.528" | 0.056" | 1.552" | 0.05" | 5,730 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A656 | 00000 | 5449A92 | 00000 | ||
| 1 1/2" | 1.594" | 0.056" | 1.622" | 0.05" | 5,930 | Rockwell C47 | ASME B18.27.4 | 25 | 90442A668 | 00000 | 5449A92 | 00000 | ||
| 1 9/16" | 1.658" | 0.068" | 1.688" | 0.062" | 7,710 | Rockwell C47 | ASME B18.27.4 | 10 | 90442A716 | 0000 | 5449A92 | 00000 | ||
| 1 5/8" | 1.725" | 0.068" | 1.756" | 0.062" | 8,010 | Rockwell C47 | ASME B18.27.4 | 10 | 90442A719 | 0000 | 5449A92 | 00000 | ||
| 1 11/16" | 1.792" | 0.068" | 1.823" | 0.062" | 8,370 | Rockwell C47 | ASME B18.27.4 | 10 | 90442A856 | 0000 | 5449A92 | 00000 | ||
| 1 3/4" | 1.858" | 0.068" | 1.891" | 0.062" | 8,670 | Rockwell C47 | ASME B18.27.4 | 10 | 90442A863 | 0000 | 5449A92 | 00000 | ||
| 1 7/8" | 1.989" | 0.068" | 2.025" | 0.062" | 9,280 | Rockwell C47 | ASME B18.27.4 | 10 | 90442A902 | 0000 | 5449A92 | 00000 | ||
| 2" | 2.122" | 0.068" | 2.16" | 0.062" | 9,890 | Rockwell C47 | ASME B18.27.4 | 1 | 90442A963 | 0000 | 5449A92 | 00000 | ||
| 2 1/2" | 2.648" | 0.086" | 2.7" | 0.078" | 15,500 | Rockwell C47 | ASME B18.27.4 | 1 | 90442A117 | 0000 | 5449A93 | 00000 | ||
| 3" | 3.182" | 0.103" | 3.245" | 0.093" | 22,200 | Rockwell C47 | ASME B18.27.4 | 1 | 90442A165 | 0000 | 5449A93 | 00000 | ||
| 3 1/2" | 3.71" | 0.12" | 3.78" | 0.109" | 30,300 | Rockwell C45 | ASME B18.27.4 | 1 | 90442A253 | 0000 | 5449A93 | 00000 | ||
| 4" | 4.24" | 0.12" | 4.35" | 0.109" | 34,700 | Rockwell C45 | ASME B18.27.4 | 1 | 90442A295 | 0000 | 5449A94 | 00000 | ||
| 12 mm | 12.6 mm | 0.7 mm | 13.1 mm | 0.6 mm | 400 | Rockwell C47 | DIN 472 | 50 | 90442A201 | 00000 | 5449A91 | 00000 | ||
| 13 mm | 13.6 mm | 0.7 mm | 14.5 mm | 0.6 mm | 400 | Rockwell C47 | DIN 472 | 50 | 90442A202 | 00000 | 5449A91 | 00000 | ||
| 15 mm | 15.7 mm | 0.9 mm | 16.1 mm | 0.8 mm | 740 | Rockwell C47 | DIN 472 | 50 | 90442A203 | 00000 | 5449A91 | 00000 | ||
| 16 mm | 16.8 mm | 1.1 mm | 17.3 mm | 1 mm | 1,160 | Rockwell C47 | DIN 472 | 50 | 90442A204 | 00000 | 5449A91 | 00000 | ||
| 17 mm | 17.8 mm | 1.1 mm | 18.3 mm | 1 mm | 1,300 | Rockwell C47 | DIN 472 | 50 | 90442A205 | 00000 | 5449A91 | 00000 | ||
| 18 mm | 19 mm | 1.1 mm | 19.5 mm | 1 mm | 1,410 | Rockwell C47 | DIN 472 | 25 | 90442A206 | 0000 | 5449A91 | 00000 | ||
| 19 mm | 20 mm | 1.1 mm | 20.5 mm | 1 mm | 1,480 | Rockwell C47 | DIN 472 | 25 | 90442A207 | 0000 | 5449A91 | 00000 | ||
| 20 mm | 21 mm | 1.1 mm | 21.5 mm | 1 mm | 1,570 | Rockwell C47 | DIN 472 | 25 | 90442A208 | 0000 | 5449A91 | 00000 | ||
| 21 mm | 22 mm | 1.1 mm | 22.5 mm | 1 mm | 1,660 | Rockwell C47 | DIN 472 | 25 | 90442A209 | 0000 | 5449A91 | 00000 | ||
| 22 mm | 23 mm | 1.1 mm | 23.5 mm | 1 mm | 1,680 | Rockwell C47 | DIN 472 | 25 | 90442A210 | 0000 | 5449A91 | 00000 | ||
| 24 mm | 25.2 mm | 1.3 mm | 25.9 mm | 1.2 mm | 3,250 | Rockwell C47 | DIN 472 | 25 | 90442A211 | 0000 | 5449A91 | 00000 | ||
| 25 mm | 26.2 mm | 1.3 mm | 26.9 mm | 1.2 mm | 3,320 | Rockwell C47 | DIN 472 | 25 | 90442A212 | 0000 | 5449A91 | 00000 | ||
| 26 mm | 27.2 mm | 1.3 mm | 27.9 mm | 1.2 mm | 3,430 | Rockwell C47 | DIN 472 | 25 | 90442A213 | 00000 | 5449A92 | 00000 | ||
| 27 mm | 28.4 mm | 1.3 mm | 29.1 mm | 1.2 mm | 3,370 | Rockwell C47 | DIN 472 | 25 | 90442A214 | 00000 | 5449A92 | 00000 | ||
| 28 mm | 29.4 mm | 1.3 mm | 30.1 mm | 1.2 mm | 3,430 | Rockwell C47 | DIN 472 | 25 | 90442A215 | 00000 | 5449A92 | 00000 | ||
| 30 mm | 31.4 mm | 1.3 mm | 32.1 mm | 1.2 mm | 3,340 | Rockwell C47 | DIN 472 | 25 | 90442A216 | 00000 | 5449A92 | 00000 | ||
| 32 mm | 33.7 mm | 1.3 mm | 34.4 mm | 1.2 mm | 3,160 | Rockwell C47 | DIN 472 | 10 | 90442A217 | 0000 | 5449A92 | 00000 | ||
| 33 mm | 34.7 mm | 1.3 mm | 35.5 mm | 1.2 mm | 3,100 | Rockwell C47 | DIN 472 | 10 | 90442A218 | 0000 | 5449A92 | 00000 | ||
| 34 mm | 35.7 mm | 1.6 mm | 36.5 mm | 1.5 mm | 5,390 | Rockwell C47 | DIN 472 | 10 | 90442A219 | 0000 | 5449A92 | 00000 | ||
| 35 mm | 37 mm | 1.6 mm | 37.8 mm | 1.5 mm | 5,930 | Rockwell C47 | DIN 472 | 10 | 90442A220 | 0000 | 5449A92 | 00000 | ||
| 36 mm | 38 mm | 1.6 mm | 38.8 mm | 1.5 mm | 6,180 | Rockwell C47 | DIN 472 | 10 | 90442A221 | 0000 | 5449A92 | 00000 | ||
| 38 mm | 40 mm | 1.6 mm | 40.8 mm | 1.5 mm | 6,290 | Rockwell C47 | DIN 472 | 10 | 90442A222 | 0000 | 5449A92 | 00000 | ||
| 40 mm | 42.5 mm | 1.85 mm | 43.5 mm | 1.75 mm | 10,220 | Rockwell C47 | DIN 472 | 10 | 90442A223 | 00000 | 5449A92 | 00000 | ||
| 42 mm | 44.5 mm | 1.85 mm | 45.5 mm | 1.75 mm | 10,220 | Rockwell C47 | DIN 472 | 10 | 90442A224 | 00000 | 5449A92 | 00000 | ||
| 45 mm | 47.5 mm | 1.85 mm | 48.5 mm | 1.75 mm | 9,890 | Rockwell C47 | DIN 472 | 10 | 90442A225 | 00000 | 5449A92 | 00000 | ||
| 48 mm | 50.5 mm | 1.85 mm | 51.5 mm | 1.75 mm | 10,790 | Rockwell C47 | DIN 472 | 10 | 90442A226 | 00000 | 5449A92 | 00000 | ||
| 50 mm | 53 mm | 2.15 mm | 54.2 mm | 2 mm | 15,510 | Rockwell C44 | DIN 472 | 1 | 90442A227 | 0000 | 5449A92 | 00000 | ||
| 52 mm | 55 mm | 2.15 mm | 56.2 mm | 2 mm | 14,940 | Rockwell C44 | DIN 472 | 10 | 90442A228 | 00000 | 5449A92 | 00000 | ||
| 58 mm | 61 mm | 2.15 mm | 62.2 mm | 2 mm | 14,380 | Rockwell C44 | DIN 472 | 1 | 90442A229 | 0000 | 5449A92 | 00000 | ||
Tight-Clearance Inverted External Retaining Rings
 |
The lugs on these rings point inward, so they won't snag on other parts and have better clearance than standard external rings. Shaped in the most common style, they are tapered so the thickest section is opposite their opening for a secure 360-degree hold. Open with retaining ring pliers, pass over the end of a shaft, then release them to spring into a groove.
Ring ID is measured with the ring uninstalled.
Phosphate-Coated Carbon Steel—The most popular choice, these are strong and wear resistant. Their finish adds some corrosion resistance, but only to minimal dampness.
Retaining Rings | Pliers | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Groove | Ring | |||||||||||||
For OD | Dia. | Wd. | ID | Thk. | Thrust Load Cap., lbf | Min. Hardness | Specs. Met. | Pkg. Qty. | Pkg. | Each | ||||
Phosphate-Coated Carbon Steel | ||||||||||||||
| 1/2" | 0.468" | 0.039" | 0.461" | 0.035" | 1,110 | Rockwell C47 | ASME B18.27.4 | 50 | 90213A105 | 00000 | 5449A81 | 000000 | ||
| 5/8" | 0.588" | 0.039" | 0.579" | 0.035" | 1,420 | Rockwell C47 | ASME B18.27.4 | 50 | 90213A106 | 0000 | 5449A81 | 00000 | ||
| 3/4" | 0.704" | 0.046" | 0.693" | 0.042" | 2,530 | Rockwell C47 | ASME B18.27.4 | 50 | 90213A107 | 00000 | 5449A81 | 00000 | ||
| 7/8" | 0.821" | 0.046" | 0.81" | 0.042" | 2,890 | Rockwell C47 | ASME B18.27.4 | 50 | 90213A108 | 00000 | 5449A81 | 00000 | ||
| 1" | 0.94" | 0.046" | 0.925" | 0.042" | 3,350 | Rockwell C47 | ASME B18.27.4 | 50 | 90213A109 | 00000 | 5449A81 | 00000 | ||
| 1 1/16" | 0.998" | 0.056" | 0.982" | 0.05" | 4,210 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A111 | 0000 | 5449A82 | 00000 | ||
| 1 1/8" | 1.059" | 0.056" | 1.041" | 0.05" | 4,460 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A112 | 00000 | 5449A82 | 00000 | ||
| 1 3/16" | 1.118" | 0.056" | 1.098" | 0.05" | 4,720 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A113 | 00000 | 5449A82 | 00000 | ||
| 1 1/4" | 1.176" | 0.056" | 1.156" | 0.05" | 4,970 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A114 | 00000 | 5449A82 | 00000 | ||
| 1 5/16" | 1.232" | 0.056" | 1.214" | 0.05" | 5,220 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A115 | 00000 | 5449A82 | 00000 | ||
| 1 3/8" | 1.291" | 0.056" | 1.272" | 0.05" | 5,480 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A116 | 00000 | 5449A82 | 00000 | ||
| 1 7/16" | 1.35" | 0.056" | 1.333" | 0.05" | 5,730 | Rockwell C47 | ASME B18.27.4 | 25 | 90213A117 | 00000 | 5449A82 | 00000 | ||
| 1 1/2" | 1.406" | 0.056" | 1.387" | 0.05" | 5,930 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A118 | 0000 | 5449A82 | 00000 | ||
| 1 9/16" | 1.468" | 0.068" | 1.446" | 0.062" | 7,710 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A119 | 0000 | 5449A82 | 00000 | ||
| 1 5/8" | 1.529" | 0.068" | 1.503" | 0.062" | 8,010 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A121 | 0000 | 5449A82 | 00000 | ||
| 1 25/32" | 1.669" | 0.068" | 1.637" | 0.062" | 8,620 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A122 | 0000 | 5449A82 | 00000 | ||
| 1 13/16" | 1.708" | 0.068" | 1.675" | 0.062" | 8,980 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A123 | 0000 | 5449A82 | 00000 | ||
| 1 31/32" | 1.857" | 0.068" | 1.819" | 0.062" | 9,690 | Rockwell C47 | ASME B18.27.4 | 10 | 90213A124 | 0000 | 5449A82 | 00000 | ||
| 2" | 1.886" | 0.068" | 1.85" | 0.062" | 9,890 | Rockwell C47 | ASME B18.27.4 | 5 | 90213A125 | 0000 | 5449A82 | 00000 | ||
| 2 1/2" | 2.36" | 0.086" | 2.313" | 0.078" | 15,500 | Rockwell C47 | ASME B18.27.4 | 1 | 90213A101 | 0000 | 5449A83 | 00000 | ||
| 3 1/2" | 3.316" | 0.12" | 3.237" | 0.109" | 30,300 | Rockwell C45 | ASME B18.27.4 | 1 | 90213A103 | 0000 | 5449A83 | 00000 | ||
| 4" | 3.792" | 0.12" | 3.7" | 0.109" | 34,200 | Rockwell C45 | ASME B18.27.4 | 1 | 90213A104 | 0000 | 5449A84 | 00000 | ||
| 12 mm | 11.5 mm | 1.1 mm | 11 mm | 1 mm | 1,010 | Rockwell C47 | DIN 471 | 50 | 97213A101 | 00000 | 5449A81 | 00000 | ||
| 13 mm | 12.4 mm | 1.1 mm | 11.9 mm | 1 mm | 1,230 | Rockwell C47 | DIN 471 | 50 | 97213A102 | 00000 | 5449A81 | 00000 | ||
| 14 mm | 13.4 mm | 1.1 mm | 12.9 mm | 1 mm | 1,340 | Rockwell C47 | DIN 471 | 50 | 97213A103 | 00000 | 5449A81 | 00000 | ||
| 15 mm | 14.3 mm | 1.1 mm | 13.8 mm | 1 mm | 1,460 | Rockwell C47 | DIN 471 | 50 | 97213A104 | 00000 | 5449A81 | 00000 | ||
| 16 mm | 15.2 mm | 1.1 mm | 14.7 mm | 1 mm | 1,570 | Rockwell C47 | DIN 471 | 25 | 97213A105 | 0000 | 5449A81 | 00000 | ||
| 17 mm | 16.2 mm | 1.1 mm | 15.7 mm | 1 mm | 1,820 | Rockwell C47 | DIN 471 | 25 | 97213A106 | 0000 | 5449A81 | 00000 | ||
| 18 mm | 17 mm | 1.3 mm | 16.5 mm | 1.2 mm | 3,320 | Rockwell C47 | DIN 471 | 25 | 97213A107 | 00000 | 5449A81 | 00000 | ||
| 20 mm | 19 mm | 1.3 mm | 18.5 mm | 1.2 mm | 3,280 | Rockwell C47 | DIN 471 | 25 | 97213A108 | 00000 | 5449A81 | 00000 | ||
| 22 mm | 21 mm | 1.3 mm | 20.5 mm | 1.2 mm | 3,190 | Rockwell C47 | DIN 471 | 10 | 97213A109 | 0000 | 5449A81 | 00000 | ||
| 23 mm | 22 mm | 1.3 mm | 21.5 mm | 1.2 mm | 3,140 | Rockwell C47 | DIN 471 | 10 | 97213A110 | 0000 | 5449A81 | 00000 | ||
| 24 mm | 22.9 mm | 1.3 mm | 22.2 mm | 1.2 mm | 3,140 | Rockwell C47 | DIN 471 | 10 | 97213A111 | 0000 | 5449A81 | 00000 | ||
| 25 mm | 23.9 mm | 1.3 mm | 23.2 mm | 1.2 mm | 3,160 | Rockwell C47 | DIN 471 | 10 | 97213A112 | 0000 | 5449A81 | 00000 | ||
| 26 mm | 24.9 mm | 1.3 mm | 24.2 mm | 1.2 mm | 3,160 | Rockwell C47 | DIN 471 | 10 | 97213A113 | 0000 | 5449A82 | 00000 | ||
| 30 mm | 28.6 mm | 1.6 mm | 27.9 mm | 1.5 mm | 6,180 | Rockwell C47 | DIN 471 | 10 | 97213A114 | 00000 | 5449A82 | 00000 | ||
| 32 mm | 30.3 mm | 1.6 mm | 29.6 mm | 1.5 mm | 6,060 | Rockwell C47 | DIN 471 | 10 | 97213A115 | 00000 | 5449A82 | 00000 | ||
| 35 mm | 33 mm | 1.6 mm | 32.2 mm | 1.5 mm | 5,970 | Rockwell C47 | DIN 471 | 10 | 97213A116 | 00000 | 5449A82 | 00000 | ||
| 38 mm | 35.8 mm | 1.85 mm | 34.5 mm | 1.75 mm | 9,440 | Rockwell C47 | DIN 471 | 10 | 97213A117 | 00000 | 5449A82 | 00000 | ||
