3M 94721 Ring Terminal Connector - Equivalent & Substitute Parts

Part Overview

The 3M 94721 is a circular ring terminal connector designed for 18-22 AWG wire gauges with a 3/8 inch stud connection. This insulated crimp terminal features copper ETP contact material with tin finish and vinyl insulation, suitable for free-hanging in-line mounting applications. The part is currently classified as obsolete, making identification of active equivalent substitutes essential for ongoing procurement and system maintenance.

Substiute Parts

94721

3MIn Stock: 107494721 Datasheet

Current PartRFQ

MVU18-38RK

3MIn Stock: 2026MVU18-38RK Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3M MVU18-38RK serves as the manufacturer-recommended substitute for the obsolete 94721. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Terminal Type: Circular ring configuration
• Stud/Tab Size: 3/8 inch stud diameter
• Wire Gauge Range: 18-22 AWG
• Termination Method: Crimp connection
• Contact Material: Copper, ETP
• Contact Finish: Tin plating
• Insulation Material: Vinyl
• Insulation Diameter: 0.145 inch (3.68mm)
• Overall Dimensions: Length 1.130 inch, Width 0.560 inch, Thickness 0.030 inch
• Color: Red

The MVU18-38RK maintains identical electrical and mechanical specifications while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The 3M MVU18-38RK is the direct functional equivalent for the obsolete 3M 94721. Both components share identical electrical and mechanical specifications across all critical parameters including terminal geometry, wire gauge compatibility, contact materials, and insulation properties.

The MVU18-38RK offers the following advantages for component selection:

• Active product status ensures ongoing availability and supply chain continuity
• RoHS compliance certification provides regulatory alignment for restricted substance requirements
• Equivalent REACH and ECCN classifications maintain compliance with existing regulatory frameworks
• Identical MSL rating (1 - Unlimited) confirms equivalent moisture sensitivity performance

Both components maintain the same HTSUS classification and export control designation, confirming their functional and regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can the MVU18-38RK directly replace the 94721 in existing applications?

A: Yes. The MVU18-38RK maintains identical specifications across all electrical and mechanical parameters including stud size, wire gauge range, contact material, finish, insulation type, and overall dimensions. Direct substitution is supported.

Q: What is the primary reason for substituting the 94721?

A: The 94721 is classified as obsolete. The MVU18-38RK is the manufacturer-recommended active equivalent, ensuring continued availability and supply chain reliability.

Q: Are there packaging differences between these parts?

A: The 94721 packaging specification is not provided. The MVU18-38RK is supplied in bulk packaging. Confirm packaging requirements for your application.

Q: Do both parts meet the same compliance standards?

A: Both parts are REACH Unaffected and classified as EAR99 for export control purposes. The MVU18-38RK carries RoHS compliance certification. Both maintain MSL rating 1 (Unlimited) for moisture sensitivity.

Q: Are the dimensions and contact specifications identical?

A: Yes. Both components feature identical overall length (1.130 inches), width (0.560 inches), thickness (0.030 inches), insulation diameter (0.145 inches), copper ETP contact material with tin finish, and vinyl insulation.

Q: What wire gauges are supported by the MVU18-38RK?

A: The MVU18-38RK supports 18-22 AWG wire gauges, identical to the 94721.