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MIL-DTL-38999 Rev. ā€œJā€ Series III Cylindrical Connectors

D38999 Connectors > D38999 Rev. “J” Series III


Designed for performance, the MIL-DTL-38999 Series III (also referred to as JD38999, MIL-C-38999, 38999) connector is the universally accepted leader in compact, lightweight cylindrical connector technology. It offers the highest performance capabilities for both general duty and severe environment applications.

  • Lightweight, compact, high contact density
  • Most popular cylindrical for high performance and environmental resistance
  • The most sophisticated cylindrical connector to meet military aerospace demands under severe conditions
  • Wide variety of customer options

Series include

  • Firewall Class RK and RS with Stainless Steel shells
  • New Clutch-Lok MTV 38999 for high vibration environments
  • Hermetic Receptacles
  • ESD Protection with Faraday cage
  • New 38999 Power connectors with high amperage contacts
  • Space application connectors
  • PCB and compliant press-fit terminations


High performance general duty and severe environmental applications.

  • Military Aerospace
  • Commercial Aircraft
  • Space Applications
  • Military Vehicles
  • Medical Equipment

Standard Requirements

MS versions meet or exceed MIL-DTL-38999 Series III. Lanyard release style meets MIL-STD-1760 requirements.

Coupling / Mounting

Threaded coupling. Quickly and completely mate in one 360° turn of the coupling nut. Self locking – lockwiring is eliminated. 5 key/ keyway polarization eliminates mismating. Universal mounting holes for front or rear mounting. Locksmith metal keying to aid in blind mating.

Contact Terminals

Crimp termination. Recessed pins (100% scoop-proof feature minimizes contact damage). Also available with PCB and compliant press-fit termination.

Performance / Environmental Effect

Operating temp. from –65°C to +200°C. Superior EMI shielding is achieved through the combination of grounding fingers and solid metal to metal mating. IP67 rating for environmental sealing. Corrosion resistance: shells of stainless steel or cadmium over nickel plating withstand a 500 hr. salt spray exposure. Operating voltage to 900 VAC (RMS) at sea level.

Optional Features

  • 6 shell styles and over 50 insert patterns.
  • Hermetic seal (glass fusion) receptacle styles available.
  • Stainless Steel Firewall, Class K styles available.
  • Variety of shell finishes.
  • Twinax, coax, triax, filter contacts and fiber optic termini options.
  • Ground plane versions.
  • Fail-safe lanyard release plug style versions.
  • Printed circuit board contacts, wire wrap and compliant press-fit contacts.
  • ESD (Electrostatic Discharge Protection) available with use of Faraday cage to shunt high voltages.
  • Flex termination assemblies for attachment to PCB boards.
Common Military & Commerical Equivalents
Military Commercial
JD38999/20 TVP00R
JD38999/21 TVPS02Y
JD38999/23 TVS07Y
JD38999/24 TV07R
JD38999/25 TVS1Y
JD38999/26 TV06R
Popular JD38999 Configurations
JD38999/20FB35SN JD38999/20WE26SN JD38999/26FF35SC JD38999/26WB35SN
JD38999/20KA98PA JD38999/20WE35SN JD38999/26FF35SN JD38999/26WB35PN
JD38999/20MB35SN JD38999/20WE6SN JD38999/26FG35SA JD38999/26WB35SA
JD38999/20ME26SN JD38999/20WJ4PN JD38999/26FG35SB JD38999/26WB35SN
JD38999/20ME6SN JD38999/20WJ4SA JD38999/26FG35SC JD38999/26WB35SN
JD38999/20MJ35SB JD38999/20WJ4SN JD38999/26FG35SN JD38999/26WB98SN
JD38999/20MJ35SN JD38999/24FA35AN JD38999/26FH35SA JD38999/26WB98SN
JD38999/20MJ4SA JD38999/24WB35SN JD38999/26FH35SN JD38999/26WC35PA
JD38999/20MJ4SC JD38999/24WB98PN JD38999/26FJ4SN JD38999/26WC35PN
JD38999/20MJ4SN JD38999/24WC35SN JD38999/26KA35SN JD38999/26WC35SN
JD38999/20WA35PN JD38999/24WD19PN JD38999/26KA98SN JD38999/26WC35SN
JD38999/20WA35SN JD38999/24WD35SN JD38999/26KB98SC JD38999/26WC8SA
JD38999/20WA98PN JD38999/24WD5SA JD38999/26KB98SN JD38999/26WD19SN
JD38999/20WB35BN JD38999/24WD5SN JD38999/26KB98SN JD38999/26WD19SN
JD38999/20WB35PA JD38999/24WE26PN JD38999/26KB99SN JD38999/26WD35PN
JD38999/20WB35PN JD38999/24WE6PN JD38999/26KC98SN JD38999/26WD35SN
JD38999/20WB35PN JD38999/25NA98PN JD38999/26ME26PA JD38999/26WD97PN
JD38999/20WB35SN JD38999/26FA35SN JD38999/26MJ35PA JD38999/26WE35PN
JD38999/20WB98PN JD38999/26FA98SN JD38999/26MJ35PB JD38999/26WE35SN
JD38999/20WB98PN JD38999/26FA98SN JD38999/26MJ4PC JD38999/26WE6PN
JD38999/20WC35PN JD38999/26FB35SN JD38999/26MJ4PD JD38999/26WE6SN
JD38999/20WC35SA JD38999/26FB35SN JD38999/26MJ4PN JD38999/26WF35SN
JD38999/20WC35SN JD38999/26FC8SN JD38999/26WA35PA JD38999/26WH35PN
JD38999/20WC35SN JD38999/26FD18SN JD38999/26WA35PN JD38999/26WH35SN
JD38999/20WD18SN JD38999/26FD35SN JD38999/26WA35SN JD38999/26WJ20PN
JD38999/20WD35PN JD38999/26FD5SN JD38999/26WA35SN JD38999/26WJ4PN
JD38999/20WD5PN JD38999/26FF35SA JD38999/26WA98SN JD38999/26WJ35PN
JD38999/20FB35SN, JD38999/20KA98PA, JD38999/20MB35SN-LC, JD38999/20ME26SN-LC, JD38999/20ME6SN-LC, JD38999/20MJ35SB-LC, JD38999/20MJ35SN-LC, JD38999/20MJ4SA-LC, JD38999/20MJ4SC-LC, JD38999/20MJ4SN-LC, JD38999/20WA35PN, JD38999/20WA35SN-LC, JD38999/20WA98PN, JD38999/20WB35BN, JD38999/20WB35PA, JD38999/20WB35PN, JD38999/20WB35PN-LC, JD38999/20WB35SN-LC, JD38999/20WB98PN, JD38999/20WB98PN-LC, JD38999/20WC35PN, JD38999/20WC35SA-LC, JD38999/20WC35SN, JD38999/20WC35SN-LC, JD38999/20WD18SN-LC, JD38999/20WD35PN, JD38999/20WD5PN, JD38999/20WE26SN-LC, JD38999/20WE35SN-LC, JD38999/20WE6SN-LC, JD38999/20WJ4PN-LC, JD38999/20WJ4SA-LC, JD38999/20WJ4SN-LC, JD38999/24FA35AN, JD38999/24WB35SN, JD38999/24WB98PN, JD38999/24WC35SN, JD38999/24WD19PN, JD38999/24WD35SN, JD38999/24WD5SA, JD38999/24WD5SN, JD38999/24WE26PN, JD38999/24WE6PN, JD38999/25NA98PN, JD38999/26FA35SN-LC, JD38999/26FA98SN, JD38999/26FA98SN-LC, JD38999/26FB35SN, JD38999/26FB35SN-LC, JD38999/26FC8SN-LC, JD38999/26FD18SN-LC, JD38999/26FD35SN, JD38999/26FD5SN, JD38999/26FF35SA-LC, JD38999/26FF35SC-LC, JD38999/26FF35SN-LC, JD38999/26FG35SA-LC, JD38999/26FG35SB-LC, JD38999/26FG35SC-LC, JD38999/26FG35SN-LC, JD38999/26FH35SA-LC, JD38999/26FH35SN, JD38999/26FJ4SN, JD38999/26KA35SN-LC, JD38999/26KA98SN, JD38999/26KB98SC-LC, JD38999/26KB98SN, JD38999/26KB98SN-LC, JD38999/26KB99SN-LC, JD38999/26KC98SN-LC, JD38999/26ME26PA-LC, JD38999/26MJ35PA-LC, JD38999/26MJ35PB-LC, JD38999/26MJ4PC-LC, JD38999/26MJ4PD-LC, JD38999/26MJ4PN-LC, JD38999/26WA35PA, JD38999/26WA35PN, JD38999/26WA35SN, JD38999/26WA35SN-LC, JD38999/26WA98SN, JD38999/26WB35PN, JD38999/26WB35PN-LC, JD38999/26WB35SA-LC, JD38999/26WB35SN, JD38999/26WB35SN-LC, JD38999/26WB98SN, JD38999/26WB98SN-LC, JD38999/26WC35PA-LC, JD38999/26WC35PN, JD38999/26WC35SN, JD38999/26WC35SN-LC, JD38999/26WC8SA-LC, JD38999/26WD19SN, JD38999/26WD19SN-LC, JD38999/26WD35PN, JD38999/26WD35SN, JD38999/26WD97PN-LC, JD38999/26WE35PN, JD38999/26WE35SN, JD38999/26WE6PN-LC, JD38999/26WE6SN-LC, JD38999/26WF35SN, JD38999/26WH35PN, JD38999/26WH35SN, JD38999/26WJ20PN, JD38999/26WJ4PN-LC