
Blind-Mate, Fixed, and Float-Mount Interconnects for Launch, Satellite, and Payload Deployment Applications
Series 253
Space-grade SuperNine® circular blind-mate assisted separation force (ASF) and Dead-Face (DF) connectors IAW MIL-DTL-38999 for use in interconnection and in-flight separation of instrumentation panels, satellites, scientific research payloads, and other applications. Category includes both standard signal and high-speed variants as well as qualified connector accessories.
- Available in most symmetrical MIL-STD-1560 and high-speed insert arrangements with contacts sizes from #23 to #8
- Select designs offered with user-configurable assisted separation force (ASF) feature
- NASA outgassing bake-out process available
- Designed to withstand the rigors of launch and flight—including shock, vibration, thermal vacuum, acceleration, and temperature extremes
- Crimp-removable contacts standard. PC tails, dual-flange standoffs, hermetically sealed, and custom blind-mate configurations available
Glenair Series 253 blind-mate connectors with assisted separation force are used for interconnection and deployment of satellites, scientific payloads, interstage applications and more. This versatile family of highly engineered and environmentally sealed connectors is also appropriate for use in missile umbilical and weapons release.
Reference
- Overview: Blind-Mate In-Flight and Dead-Face Disconnects
- Table of Contents / Selection Guide
- Technology Overview: Blind-Mate, Assisted Separation Force, Dead-Face, and Other Payload Deployment Interconnects
- Class G and NASA Space-Grade Guidelines
Related Glenair Product
On this page...
- SuperNine Blind-Mate Assisted Separation Force Connectors with MIL-STD-1560 Power and Signal Insert Arrangements
- SuperNine Dead-Face Connectors with MIL-STD-1560 Power and Signal Insert Arrangements
- SuperNine Blind-Mate Assisted Separation Force Connectors with High-Speed Data and RF Insert Arrangements
SuperNine Blind-Mate Assisted Separation Force Connectors with MIL-STD-1560 Power and Signal Insert Arrangements
Blind-Mate and Assisted Separation Force Connectors for Space Flight Applications
Glenair blind-mate assisted separation force connectors are engineered for mission-critical in-flight electrical disconnect applications, including satellite deployment, spacecraft stage separation, missile staging, and umbilical release. These connector pairs deliver precisely tuned assisted separation characteristics—with fully-configurable degrees of force — eliminating the need for lanyard-based actuation technologies
Reference
- MIL-STD-1560 Standard Contact Arrangements
- MIL-STD-1560 High-Density Contact Arrangements
- MIL-STD-1560 Combo Contact Arrangements

253-014
Crimp Plug, Fixed Rear Panel-Mount Series, Roll-On / Roll-Off Nose
253-015
Crimp Receptacle, Float-Mount Series Environmental
253-027-07
PC Tail Plug, Fixed Jam-Nut, Roll-On/Roll-Off Nose, Threaded-Standoff
253-028-07
PC Tail Receptacle, Fixed Jam-Nut, Roll-On/Roll-Off, Threaded-Standoff
253-039
Hermetic Bulkhead Feedthru, Plug, Fixed-Mount, Roll-On / Roll-Off Nose
253-016
Crimp Plug, Fixed Wall-Mount, Adjustable Zero Separation Force
253-017
Crimp Receptacle, Float-Mount, Adjustable Zero Separation Force
253-018
Feedthru, Jam-Nut or In-Line Plug to D38999 Type, Assisted Kickoff
253-031
Crimp Plug, Float Mount , Roll-On / Roll-Off Nose, Misalignment Feature
253-033
Bulkhead Feed-Thru, Jam-Nut Float-Mount Receptacle to D38999 Type
253-034
Crimp Feed-Thru, Jam-Nut Receptacle to D38999 type ReceptacleSuperNine Dead-Face Connectors with MIL-STD-1560 Power and Signal Insert Arrangements
Dead-Face In-Flight Separation Connectors
Glenair dead-face (DF) blind-mate connectors are designed for critical in-flight separation tasks in spacecraft, satellite systems, and missile staging. These connectors feature built-in electrical isolation that occurs prior to mechanical disconnection — enhancing system safety and electrical integrity during separation events.

253-050
Crimp Plug, Dead-Face, Rear-Panel Mount, Roll-Off Nose
253-051
Crimp Receptacle, Dead-Face, Rear-Panel MountSuperNine Blind-Mate Assisted Separation Force Connectors with High-Speed Data and RF Insert Arrangements
El Ochito® Contacts for Harsh Environment Military and Aerospace Data Networks
El Ochito® "White" octaxial contacts simplify the task of upgrading military and aerospace platforms to meet the high data rate demands of 1000BASE-T and 10GBASE-T. Metal spline isolates data pairs for improved signal integrity. "Ochito Red" contacts support multi-gigabit data protocols such as HDMI and DisplayPort. 90 ohm Ochito "Blue" contacts support SuperSpeed USB. El Ochito® contacts are compatible with Series 23 SuperNine® (MIL-DTL-38999 Series III) connectors with keyed size 8 contact cavities.
- 10GBASE-T, SuperSpeed USB, and Multi-Gigabit Shielded Pairs
- Data Pair Isolation Technology
- Snap-In, Rear Release
- Environmentally Protected
- Aerospace-Grade Performance
Reference
- High-Speed Contact Arrangements for Data / RF Series
- Overview: El Ochito® Octaxial Aerospace-Grade Contacts
- El Ochito® Octaxial "White," "Blue," and "Red" Contact Specifications
- El Ochito® Contact Configuration and Mod Code 909
