{"product_id":"rotor-clip-dsh-4st-pd-b100-external-retaining-ring-4mm","title":"Rotor Clip DSH-4ST Pd B100 External Retaining Ring 4mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ROTOR CLIP DSH-4ST PD B100 is a metric external retaining ring designed for 4 mm shaft diameters with a 3.8 mm groove diameter. Made from 1060-1090 spring steel and finished with a phosphate and oil coating, this ring seats into a precision-cut external groove to retain components on a shaft against axial movement. Ring thickness is 0.40 mm and groove width is 0.50 mm. It meets DIN 471 and SAE 1060-1090 fastener standards. Licensed tradespeople, machinists, and maintenance technicians install these rings in mechanical assemblies where reliable axial retention is required in compact, metric-dimensioned shafts.\u003c\/p\u003e\u003cp\u003eThis retaining ring is suited for light-duty mechanical assemblies, precision instruments, small motors, and industrial equipment using metric shafting. Its small form factor makes it a common choice in applications where space is tight and a secure, low-profile retention method is needed. The phosphate and oil finish provides a baseline level of corrosion resistance suitable for indoor and controlled-environment use. This SKU ships in a minimum order quantity of 100 pieces per order.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFits 4 mm shaft diameter with 3.8 mm groove diameter for precise axial retention\u003c\/li\u003e\n\u003cli\u003e1060-1090 spring steel construction with Rockwell hardness of 63-69.5 HR30N\u003c\/li\u003e\n\u003cli\u003ePhosphate and oil finish for corrosion resistance in controlled environments\u003c\/li\u003e\n\u003cli\u003eMeets DIN 471 and SAE 1060-1090 fastener standards\u003c\/li\u003e\n\u003cli\u003eGroove diameter tolerance of -0.04 to +0.04 mm for consistent fitment\u003c\/li\u003e\n\u003cli\u003eMetric system of measurement; nominal size 3.80 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style external retaining ring for metric shafts conforming to DIN 471 groove geometry with a 4 mm shaft diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation requires the correct size external snap ring pliers to spread and seat the ring into the shaft groove without overstressing the ring. Power down and de-energize any equipment before servicing components on the shaft. Inspect the groove dimensions for compliance with DIN 471 tolerances before installation to ensure proper seating and retention force. Do not reuse retaining rings that have been removed, as repeated spreading can compromise their retention capacity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Diameter\u003c\/strong\u003e: 3.80 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 3.80 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 3.70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Diameter Tolerance\u003c\/strong\u003e: -0.04 to +0.04 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Diameter Tolerance\u003c\/strong\u003e: -0.15 to +0.04 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 0.50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Depth\u003c\/strong\u003e: 0.10 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Thickness\u003c\/strong\u003e: 0.40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Thickness Tolerance\u003c\/strong\u003e: -0.05 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Spring Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 1060-1090\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 63-69.5 HR30N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Phosphate and Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 471, SAE 1060-1090, ISO 13485:2015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31163202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ROTOR CLIP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: DSH-4ST PD B100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROTOR CLIP","offers":[{"title":"Default Title","offer_id":51694775664946,"sku":"DSH-4ST PD B100","price":1096.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8d36ce26ed49cb16f1f1c37fa3ba4ebd_569139a1-f23b-4057-9235-c8fe43254d2c.jpg?v=1788328311","url":"https:\/\/voomisupply.com\/products\/rotor-clip-dsh-4st-pd-b100-external-retaining-ring-4mm","provider":"Voomi Supply","version":"1.0","type":"link"}