D38999/20
Wall-mount receptacle
Four-hole flange receptacle family; confirm class, insert, contacts and keying.
View matching product →High-density harsh-environment circular interconnects
MIL-DTL-38999 Connector Alternatives & Complete BOM Support
A high-intent sourcing page for D38999 plugs, receptacles, contacts and matched M85049 rear accessories—built around complete part-number decoding and customer validation.
Quick Answer
Can Tradin Connect support MIL-DTL-38999 connectors?
Yes. D38999 is a core Tradin Connect sourcing category. We can review Series I, II and III requirements when supply is confirmed, with current product examples focused on Series III D38999/20 wall-mount, /24 jam-nut and /26 straight-plug styles. Every alternative is matched from the full part number and application requirements.
Reference familyMIL-DTL-38999 Series I, II and III requirements when confirmed
Current landing-page focusSeries III /20, /24 and /26 shell styles
Key match inputsShell style, material/finish, shell/insert, contacts and polarization
Accessory pathM85049/SAE AS85049 backshell, contacts, caps, boots, shielding and sealing
Supply positioningCompatible alternative and BOM sourcing—not automatic QPL or original status
Important sourcing note: These pages promote compatible, cost-focused alternatives and custom sourcing paths. They do not represent alternative products as original, universally interchangeable, QPL-listed or identical in every performance dimension.
Model Architecture
Major MIL-DTL-38999 model families
Use the style code to orient the discussion—not to complete a missing part number. Every remaining segment still needs verification.
D38999/24
Jam-nut receptacle
Single-hole panel-mount family for compact equipment interfaces.
View matching product →D38999/26
Straight plug
Cable plug family that may require a matched backshell, boot and shield termination.
View matching product →Series I
Bayonet-coupled family
Treat as a separate series and validate exact interface and accessories.
Series II
Low-profile bayonet family
Series-specific shell and accessory requirements must be confirmed.
Series III
Tri-start threaded family
Current Tradin Connect examples are concentrated in this family.
High-intent references covered on this page
Published Product Records
Popular MIL-DTL-38999 products
Start with these frequently requested models. Open a product for specifications and cross-reference review, or use the full directory for every published SKU.
D38999/20WB35PNCompatible 13-Contact Wall Mount Receptacle
D38999/20Wall Mount Receptacle
MS27466T17E06ANCircular connector
MS27467T09B35PACircular connector
MS27473T10B04SB-HCircular connector
MS27467T13F08PNCircular connector
MS27467T15B35SACircular connector
MS27467T17F26PCCircular connector
MS27468T09E35PCircular connector
MS27468T21B16PNCircular connector
MS27496E09B35PNCircular connector
MS27496E13B04SNCircular connector
MS27496E13B08SNCircular connector
MS27505E09B35PNCircular connector
MS27505E11B99PNCircular connector
498 published productsBrowse the complete model directory without extending this landing page.
View All ProductsSelection Guide
Four checks before we quote
This is the practical information procurement and engineering teams need to reduce cross-reference risk.
DecisionWhy it mattersWhat to send
01Which D38999 series?Series I, II and III use different coupling and accessory interfaces.Full prefix, series or catalog reference
02Which shell style and class?/20, /24 and /26 define the broad form; the following class/finish codes still matter.Complete part number without omitted suffixes
03Which insert, contacts and keying?Shell size, insert arrangement, pin/socket and polarization jointly define the mating interface.Mating part and connector face drawing or photo
04Which backshell and cable system?Rear thread, cable OD, shield, sealing and strain relief determine the accessory stack.M85049 reference, cable build and boot/EMI needs
Representative Form Factors
Use the shell form as a first matching check
This photo illustrates one receptacle form in the series. Use the model descriptions and selection checklist to distinguish other mounting styles, then verify the full ordering code and mating drawing.
Beyond One Connector
From a part number to a complete harness-side solution
Our value is not simply offering a lower-cost connector. We organize the connector, mating half, contacts, rear accessories, shielding, sealing and cable protection around one reviewed BOM.
Send Your BOMComplete number decoding
We review the full D38999 string instead of quoting from /20, /24 or /26 alone.
Connector + backshell pairing
The connector is matched with confirmed M85049/AS85049 rear accessories and cable entry requirements.
Mixed BOM quotation
Plugs, receptacles, contacts, caps, backshells, boots, sealing and cable protection can be supplied in one RFQ path.
Validation-ready alternatives
Samples, drawings and documentation can support the customer’s form, fit and performance validation plan.
CONTENT OWNER
Tradin Connect Technical Sourcing Team
Last reviewed: 24 August 2026
How this page was prepared
Model-family structure was checked against manufacturer technical catalogs and the existing Tradin Connect catalog. The page deliberately avoids unverified qualification, performance, stock, lead-time and customer-use claims. Final quoted specifications still require document review.
Technical Sources
Technical References
Manufacturer catalogs describe the reference families; they do not prove that an alternative has identical performance or qualification.
- 01MIL-DTL-38999 model-family guideTradin ConnectOpen internal guide →
- 02MIL-DTL-38999 selection and visual guideTradin ConnectOpen internal guide →
- 03MIL-DTL-38999 Series III TV ConnectorsAmphenol AerospaceCatalog reference
- 04MIL-DTL-38999 catalogAmphenol AerospaceCatalog reference
Question & Answer
MIL-DTL-38999 sourcing questions
Concise answers for buyers, distributors, harness makers and engineers. Exact compatibility, documentation and qualification are still confirmed against the quoted item.
01What do D38999/20, D38999/24 and D38999/26 identify?+
For Series III references, /20 is the wall-mount receptacle family, /24 is the jam-nut receptacle family and /26 is the straight-plug family. The remaining codes are still required for an exact match.
02Can you cross-reference a full D38999 part number?+
Yes. Send the complete number and, when possible, the mating connector, drawing, cable details, application and documentation requirements. We will identify which segments need confirmation before quoting.
03Can you match an M85049 backshell to the connector?+
Yes, backshell matching is a core part of the BOM workflow. We still need the connector series and shell, backshell function, angle, cable entry, shield method, finish and environmental requirements.
04Do you supply genuine original D38999 connectors?+
Original and alternative routes must be clearly separated. This landing page is positioned around compatible alternatives. Any genuine original offer would need its own authenticity and traceability documentation.
05Does “compatible” mean the same qualification and service life?+
No. Compatibility describes a documented interface and application match under review; it does not establish identical qualification, performance or service life. Customer testing and approval remain necessary.
06Which information should be included in a D38999 RFQ?+
Include the full connector and backshell numbers, quantity, mating half, cable OD and shield construction, operating environment, applicable drawings, required documents and planned validation.
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Cross-Reference Request
Send the complete MIL-DTL-38999 part number.
Add the drawing, mating part, cable details, quantity, application, required documents and validation plan for a more dependable review.
Get a Cross-Reference & Quote
Send the part number and quantity. We’ll review the configuration before quotation.
Need to send drawings or more details? Open Full RFQ