MS circular connectors meet the performance requirements of MIL-DTL-5015 specifications while providing cost-effective, well-proven electrical capabilities in critical equipment. MIL-DTL-5051 spec connectors feature threaded couplings and single key/keyway polarization to simplify installation and design.
Class E MIL-DTL-5051 spec connectors are designed with environmental resistance and strain relief for use in applications where the connector is exposed to moisture, vibration, and rapid changes in pressure and temperature.
This MS spec box mounting receptacle (Alternate Part# 3112E123S) is a three-position, straight circular connector with a number 12 shell size and 16 AWG socket size.
- High-grade aluminum shell construction with electrically conductive cadmium-plated finish
- Silver-plated, copper alloy pin and socket material
- Neoprene inserts offer a high dielectric strength and arc resistance while resisting vibration
- Strain-relief clamp reduced tension at the solder connection providing a positive mechanical seal
- Completely field serviceable provided with the strain relief clamp
Product Codes | |
|---|---|
| Mfr Part No: | MS3112E12-3S |
Series: MS 5015Keyway: 5 Key/Keyway PolarizationTermination: solderWire Size: 16 AWGShell Size: 12Number of Contacts: 3Insertion Arrangement: 12-3Mounting Type: FlangeVoltage Rating: 1,000 VACCurrent Rating: 13AMounting Hole Diameter: 0.12 in
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: MS3112E12-3S
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Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
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