Mil-Spec Circular Connectors

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Amphenol Aerospace Mil-Spec Circular Connectors

MIL-DTL-38999 Series III

High reliability and increased versatility best describe Amphenol MIL-DTL-38999, Series III circular connectors. Originally designed for the harshest of environments and most demanding of applications, Amphenol MIL-DTL-38999 Series III, Tri-Start connectors continue to evolve in pace with the needs of an ever-changing market.


  • Qualified to MIL-DTL-38999
  • Qualified to BACC63DB and BACC63DC specifications
  • EMI Shielding
  • Contact Protection
  • Moisture Resistance
  • Corrosion Resistance
  • Vibration/Shock
  • Firewall Capability
  • Lockwiring Eliminated
  • Quick Coupling
  • Inventory Support Commonality


  • Qualified to MIL-DTL-38999
  • Qualified to BACC63CT and BACC63CU specifications
  • Lightweight
  • Corrosion Resistance
  • Durability
  • Extended Life Contact

MIL-DTL-38999 Series III Catalog

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MIL-DTL-38999 Series I, II

Amphenol® LJT and JT Series subminiature cylindrical connectors are qualified to MIL-DTL-38999*, Series I and II respectively. These connectors were developed to meet the needs of the aerospace industry, and provided the impetus for development of the MIL-C-38999 specifications, which has been superseded by MIL-DTL-38999.


  • Contact Protection
  • Quick Positive Coupling
  • Eliminated
  • Error Proof Alternate Positioning
  • EMI Shielding
  • Nine Shell Sizes and a Variety of Shell Styles
  • Contact Options
  • Fixed Solder Contacts
  • Hermetic
  • “Breakaway” Lanyard Release Style - available in LJT plugs.
  • Inventory Support Commonality
  • RoHS Compliant Product Available

MIL-DTL-38999 Series I, II Catalog

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Matrix MIL-DTL-26482 Series II

Amphenol Aerospace offers the Matrix product line of MIL-DTL-26482, Series 2 Connectors. This series provides a bayonet coupling connector with crimp rear insertable, rear releasable contacts.


  • Bayonet coupling connector with crimp rear insert, rear release contacts.
  • Medium size, environmentally resistant connector
  • Shells size 8 to 24. Contact sizes 20, 16, and 12.
  • Recommended operating voltage to 1,000 VAC (RMS) at sea level
  • Quick positive coupling assured by 3 point bayonet coupling system
  • 34 insert patterns available from 3 to 55 circuits
  • Various finishes are available

Matrix MIL-DTL-26482 Series II Catalog

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MIL-DTL-5015 Matrix Connectors

Amphenol Aerospace's MIL-DTL-5015 with crimp rear release contacts provides an alternative to the older MIL-C-5015 solder type. It bridges the gap between an old connector standard and the high performance needs of current technologies.


  • Medium to heavy weight cylindrical
  • Seven mounting style in shell sizes 8 to 48. Contact sizes 0 to 16 in over 100 insert patterns.
  • Classes include aluminum or stainless steel shells, or firewall capability.
  • Completely sealed against environmental extremes
  • Thermocouple pin and socket contacts are available.

MIL-DTL-5015 Matrix Connectors Catalog

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MS 5015

Amphenol’s 5015 Series is a rugged, versatile and environmental resistant connector with proven electrical capability MS 5015for a less expensive solution. 5015 series connectors are medium to heavy weight cylindrical connectors with 5 shell styles, 19 shell sizes and 5 service classes. The 5015 offers 286 contact arrangements from 1 to 104 circuits. It is available in solder or crimp contacts, environmentally resistant options, threaded couplings, coaxial and thermocouple contacts, and ROHS compliant versions. This helps make Amphenol’s 5015 series an industry leading product.


  • Environmental sealing
  • Optional filtered plug connectors
  • Combined power and signal all in one connector
  • The RADSOK® advantage provides contacts that handle up to 150% higher amperages than standard contacts.
  • Over 280 insert patterns allows for easy customization.
  • MIL-DTL-5015 features threaded couplings and single key/keyway polarization, representing maximum simplicity in design.

MS 5015 Catalog

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Matrix MIL-DTL-83723

Matrix MIL-DTL-83723 series provides many choices within the range of a medium sized, environmentally resistant circular connector. With three coupling style choices- bayonet, threaded and quick-disconnect - the versatility of this family makes it increasingly popular for panel mount, box mount and line-to-line applications in aircraft. For general duty environmentally resistant requirements, this family of connectors provides a wide range of interconnection solutions.

Matrix MIL-DTL-83723 Catalog

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Pyle MIL-DTL-83723

The Amphenol/Pyle® MIL-DTL-83723*, Series III Connectors were developed for the higher operating temperatures inherent in today’s high performance aircraft and aircraft engines.

These connectors meet the performance requirements of the following manufacturer’s specifications

  • Boeing BACC63CM/CN Firewall
  • European: ASD EN2997
  • General Electric: M50TF3564
  • Rolls Royce/SBAC: ESC10 and ESC11

Amphenol/Pyle MIL-DTL-82723 Series III Connectors are available in a wide variety of styles

  • Threaded Connectors
  • Bayonet Connectors
  • High Temperature Connectors
  • Hermetic Connectors

Pyle MIL-DTL-83723 Catalog

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MIL-DTL-26500, Pyle

High quality and dependability are the earned reputations of the Amphenol®/Pyle® Series of connectors designed to meet the specification requirements of MIL-DTL-26500. Serving such diverse fields as avionics, missile systems, aircraft general-purpose applications, aircraft engines and firewalls.

Amphenol® /Pyle® MIL-DTL-26500 connectors are medium sized connectors with a rugged design, lightweight construction and continuously dependable performance. The product family options include

  • Aluminum Connectors- Military Classes R and G
  • Stainless Steel Connectors - Military Class E
  • Firewall Connectors - Military Class K
  • 48 Series Receptacle Short Skirt
  • Hermetic Connectors - Military Class H
  • Contacts and Accessories
  • Commercial Design with PC Tail Contacts
  • BACC63 Boeing Specifications

MIL-DTL-26500, Pyle Catalog

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Class L, MIL-DTL-22992 Connectors

The Amphenol Class “L” 22992 heavy duty connectors are the largest size cylindricals. They are available only in the specific configurations prescribed by MIL-DTL-22992 for either military or industrial class Lapplications. This rigid configuration control assures correct interconnection of electrical circuits for maximum safety and reliability.

Controlled parameters include:

  • Connector shell style and contact type - Wall mount and cable connecting receptacles are supplied with socket contacts only, and always lead from the power source. Plugs (with coupling rings) have pin contacts only, and always lead to the equipment end.
  • Shell size - The direct relationship of shell size to current carrying capability reduces the possibility of inadequate wiring for heavy electrical loads.

Class L, MIL-DTL-22992 Connectors Catalog

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Heavy Duty MIL-DTL-22992, QWLD Connectors

Amphenol QWLD Series heavy duty circular connectors provide reliable power and control functions in hostile environments where ordinary connectors cannot survive.


  • High Durability - water and explosion proof, resistant to abrasion, corrosion, vibration and shock
  • Quick, Positive Mating - double stub thread per MIL-STD-1373 for fast coupling, easily cleaned
  • Selection - over 300 industrial and MS-approved insert patterns available, including coaxial and thermocouple

Heavy Duty MIL-DTL-22992, QWLD Catalog

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348 Series MIL-C-81511, Series I, II

The Amphenol 348 Series provides reliability and high contact density connectors. Available in two basic constructions: Long (Series I) and standard (Series II). A lightweight, compact connector offered in 4 shell styles: straight plug, square flange, single hole mount and cable receptacle.

348 Series MIL-C-81511, Series I, II Catalog

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Circular Connectors Brochure

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Mil-Spec to Commercial Prefix Guide

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2016 Authorization Letter

2016 Authorization Letter

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