MIL-DTL-5015 covers circular connectors with solder or removable crimp contacts - both front and rear release – which are rated for operation within a temperature range of –55 °C up to 200 °C depending upon the class of the connector. One drawback of the MIL-DTL-5015 connector is its use of a single keyway unlike connectors designed to MIL-DTL-38999. This means the connector cannot be polarised to stop mismating with similar sized connectors in applications where numerous plugs and receptacles are present.
The UK-made Weald Electronics LMJ Series military circular connectors meets the requirements of MIL-DTL-5015 (formerly MIL-C-5015). The LMJ connectors are threaded coupling with an aluminium shell with a neoprene insert. These MIL-DTL-5015 connectors are equivalent to connectors from other makers including Amphenol (MS and 97B) and ITT Cannon (MS).
The Weald MG Series is based on MIL-DTL-5015 planforms and features a reverse bayonet coupling for quick, positive connection with the added benefit of an audible indication of full coupling.  Like the LMJ Series, MG connectors feature aluminium shells and shell styles include straight, 90 degrees and wall and box mounting. The MG Series is intemateable with VG95234 & Pattern 121B connectors.
Both LMJ and MG Series can be rated up to IP67 and a range of accessories for both LMJ and MG Series includes protective caps, dust covers, nut plates, gaskets and cable clamps.