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// TECHNICAL RESOURCES

MS16633 external E retaining rings.

Look up selected stocked MS16633 external E-rings by shaft-diameter reference, basic ring thickness and material/finish.

// PART IDENTIFICATION

External E-type retaining rings

MS16633 identifies reduced-section external E retaining rings. The ring seats in a shaft groove to retain a component axially.

The shaft diameter, groove geometry and retained-part geometry work together in selecting the required ring.

// STOCKED SELECTION

Stocked MS16633 part numbers

Selected stocked configurations are listed below. Dimensions are nominal identification references in inches; use the controlling specification and drawing for full tolerances and acceptance requirements.

MS16633 stocked external E-ring references
Part numberShaft diameter reference (in)Basic ring thickness T (in)Material / finishStock statusRequest pricing
MS16633-10140.1400.025Cadmium-plated carbon spring steelStocked itemQuote MS16633-1014 →
MS16633-40060.0620.010Passivated CRESStocked itemQuote MS16633-4006 →
MS16633-40090.0940.015Passivated CRESStocked itemQuote MS16633-4009 →
MS16633-40180.1880.025Passivated CRESStocked itemQuote MS16633-4018 →

Stocked items are subject to prior sale. Request a quote to confirm current availability and lead time.

T is the basic thickness dimension. Finished thickness limits include the material and finish allowances specified in the drawing.

// SIZE SELECTION

A shaft reference is different from a free ring diameter

MS16633-4006 references a 0.062-inch shaft, while MS16633-4009 references a 0.094-inch shaft. The free ring opening and groove diameter have separate dimensions.

Use the specified groove diameter, width and corner geometry when reviewing the application.

// MATERIAL IDENTIFICATION

The dash number carries the material group

MS16633-1014 is a cadmium-plated carbon spring steel selection. The selected -4006, -4009 and -4018 entries are passivated corrosion-resistant steel.

Retain the full dash number when ordering so the required size, material and finish remain together.

// SOURCE WITH WEBSON

Send the application requirement

Provide the complete part number, quantity, required date, governing issue and certification requirements. Include any application drawing or approved-source requirements that affect the order.

// BUYER CHECKLIST

Prepare the requirement for quotation

// SOURCE WITH WEBSON

Have a part number or bill of material?

Send the complete designation, quantity, required delivery date and documentation requirements. Webson will review your requirement for quotation.