Why Amphenol is putting a « J » at the beginning of military 38999 connector part numbers like “JD38999/24WB35PN” or “JMS27468T11B35P” ?

The J is called “JAN brand” in the MIL-DTL-38999 standard.

This is a proof that our connectors are QPL approved by American authorities.

Corresponding MIL-DTL-38999 rev M standard paragraph:

3.52.2 JAN and J marking. The United States Government has adopted and is exercising legitimate control over the certification marks "JAN" and "J", respectively, to indicate that items so marked or identified are manufactured to, and meet all the requirements of specifications. Accordingly, items acquired to, and meeting all of the criteria specified herein and in applicable specifications, shall bear the certification mark "JAN" except that items too small to bear the certification mark "JAN" shall bear the letter "J". The "JAN" or "J" shall be placed immediately before the part number except that if such location would place a hardship on the manufacturer in connection with such marking, the "JAN" or "J" may be located on the first line above or below the part number. Items furnished under contracts or orders which either permit or require deviation from the conditions or requirements specified herein or in applicable specifications shall not bear "JAN" or "J". In the event an item fails to meet the requirements of this specification and the applicable specification sheets or associated detail specifications, the manufacturer shall remove completely the military part number and the "JAN" or the "J" from the sample tested and also from all items represented by the sample. The "JAN" or "J" certification mark shall not be used on products acquired to contractor drawings or specification. The United States Government has obtained Certificate of Registration Number 504,860 for the certification mark "JAN" and Registration Number 1,586,261 for the certification mark “J”.

Note: The “JAN” or “J” is not part of the PIN but indicates a certification.

  • How to order MIL-DTL-38999 series I connectors in military designation: see page 32 of LJT/HE308 catalogue LJT-HE308 catalogue
  • How to order MIL-DTL-38999 series II connectors in military designation: see page 24 of JT catalogue  JT catalogue
  • How to order MIL-DTL-38999 series III connectors in military designation: see page 37 of TV-CTV catalogue Catalogue Amphenol TV-CTV  
Content réference
LJT/HE308 - JD38999 Series I
JT - JD38999 Series II
TV-CTV - JD38999 Series III