M8-516RK Equivalent & Substitute Parts

Part Overview

The M8-516RK is a ring terminal connector manufactured by 3M, designed for 8 AWG wire termination on a 5/16 stud. This non-insulated circular terminal features a brazed seam construction and is part of the Scotchlok™ series. The component is actively produced and RoHS compliant, making it suitable for applications requiring reliable crimp termination in electrical assemblies. Substitute parts may be required due to inventory availability, supply chain considerations, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

M8-516RK

3MIn Stock: 1028M8-516RK Datasheet

Current PartRFQ

P8-56R-T

Panduit CorpIn Stock: 1355P8-56R-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M8-516RK is permissible with parts that maintain identical electrical and mechanical compatibility criteria. The critical parameters governing substitution are:

• Wire gauge (8 AWG)
• Stud size (5/16)
• Terminal geometry (circular)
• Crimp termination interface
• Non-insulated construction
• Brazed seam assembly method
• Free hanging mounting configuration

The P8-56R-T from Panduit Corp satisfies all mandatory substitution criteria. Both components are designed for the same wire gauge, stud diameter, and termination method. Dimensional variations in thickness and overall length do not affect functional compatibility within the specified parameter set, as these dimensions remain within acceptable tolerances for the 8 AWG / 5/16 stud interface.

Parameter Comparison

Engineering Selection Recommendations

Both the M8-516RK and P8-56R-T are active production components with current regulatory compliance. The M8-516RK carries RoHS compliance certification, while the P8-56R-T meets ROHS3 standards. Both components are REACH unaffected and classified under the same HTSUS code (8536.90.4000), confirming equivalent tariff treatment.

Selection between these components should be based on availability, lead time, and inventory status. The P8-56R-T currently maintains higher inventory levels (1279 pcs vs. 960 pcs), which may influence procurement decisions. Both components are suitable for direct substitution in applications requiring 8 AWG ring terminals on 5/16 studs.

Frequently Asked Questions (FAQ)

Q: Can the P8-56R-T replace the M8-516RK in existing designs?

A: Yes. Both components share identical wire gauge, stud size, terminal geometry, and termination method. The dimensional differences in thickness and length do not affect functional compatibility for the 8 AWG / 5/16 stud interface.

Q: What are the key compatibility criteria for these ring terminals?

A: Wire gauge (8 AWG), stud diameter (5/16), circular terminal geometry, crimp termination, and non-insulated construction are the primary criteria. Both parts meet all these requirements.

Q: Are there regulatory differences between these components?

A: Both components are RoHS compliant and REACH unaffected. The P8-56R-T carries ROHS3 certification, which represents a more recent compliance standard. Both are acceptable for regulated applications.

Q: Do the dimensional differences affect installation?

A: The thickness variation (0.050" vs. 0.040") and length variation (1.060" vs. 1.250") remain within acceptable tolerances for the specified stud interface and do not impact crimp quality or electrical performance.

Q: What packaging format is available for both parts?

A: Both components are supplied in bulk packaging, suitable for high-volume assembly operations.