MIL-DTL-38999 Series III Connector Series DLA QPL Environmental and Hermetic Connectors and Qualified Backshells and Connector Accessories

D38999 Series III, the Industry Standard QPL Mil/Aero Connector Backed by Glenair Service and Availability. Class H Space-Grade Hermetic Qualified and Available.

MIL-DTL-38999 Series III Connectors are the most widely specified connectors within the mil-aero industry — and for good reason. Developed for reliability, the MIL-DTL-38999 Connector Series III triple-start mating thread prevents galling and cross-threading while providing quick disconnect (single-turn action) to engage self-locking, grounded, metal-to-metal coupling. The Series III features accessory threads and environmental sealing for reliable attachment of backshells. The scoop-proof shell design protects crimp-removable contacts from damage. Integrated plug-to-receptacle grounding and shell-to-shell bottoming delivers 65dB minimum shielding at 10 GHz. A wide range of contact sizes, supported wire and insert arrangements IAW MIL-STD-1560 are available.

DLA-Qualified Classes J and M Composite MIL-DTL-38999 Series III Connectors

Glenair offers DLA-Qualified MIL-DTL-38999 Series III Composite connectors in Class J (Cad / O.D.) and Class M (Electroless Nickel).

Molded 40% carbon-filled PEEK composite thermoplastic QPL D38999/26 plug and D38999/20 wall-mount receptacles offer outstanding weight savings and unlimited corrosion protection compared to metal versions. Glenair “Better-than-QPL” SuperNine versions offer enhanced features beyond the QPL such as integrated band porch for EMI termination without the use of a backshell.

Datasheet: PEEK Composite MIL-DTL-38999 Series III DLA-Qualified Plug and Receptacles

DLA QPL MIL-DTL-38999 Connectors Series III and IV available from Glenair

Qualified environmental connector plug, as well as jam-nut, and square flange, box mount, wall mount and solder mount receptacle connectors
D38999 Series III Environmental Series Slash Sheets: D38999/26, D38999/24, D38999/20
D38999 Series III Hermetic Series Slash Sheets: D38999/21, D38999/25, D38999/23, D38999/27
All 1560 crimp-contact insert arrangements for MIL-DTL-38999 Connector Series III fully supported, including the new G29 arrangement.
The first supplier qualified for high-density size #23 contact arrangements: Insert 23 for shell sizes A, B, C, D, E, F, G, H, and J (see also)
Commercial-equivalent Environmental and hermetic versions available with plating classes IAW MIL-DTL-38999 Connector Series III
A 100% made in America interconnect: No foreign sourced materials, component parts, or assembly labor employed

Contact Arrangement G29 — Glenair is the first qualified supplier of high-density size #23 contact arrangements for MIL-DTL-38999.

Glenair DLA qualified MIL-DTL-38999 Connector Series III connectors support all MIL-STD-1560 insert arrangements. Qualified environmental-class Series III connectors are supplied with W, F, G and T class materials and plating. Hermetic versions of Series III are available in classes Y and N. Class H Space-Grade Hermetic Qualified and Available.

MIL-DTL-38999 Connector Series Technical Reference

Contacts and Tools

Product Datasheet

MIL-DTL-38999 Series III QPL Connectors

Slideshow Presentation

MIL-DTL-38999 Series III QPL

The New MIL-DTL-38999 Go-To Supplier

Industry standard and special design MIL-DTL-38999 mil-aero cylindrical connectors from the most accommodating engineering and manufacturing team in the interconnect industry — we say yes to standards and specials!

E ngineered Solutions and Exotic Derivatives

High-density, push-pull, lanyard release, high temperature, ground plane, compliant pin, zero extraction force, thru-bulkhead, space grade, gender changers, modified flange, or any other modification needed to solve a complex interconnect challenge.

Liberal policies on NRE costs, minimum order quantities and delivery schedules.

MIL-DTL-38999 Connector Series III and IV

D38999, the Industry Standard Mil/Aero Connector Backed by Glenair Service and Availability

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MIL-DTL-38999 Connector Series III Environmental

Standard environmental-class MIL-DTL-38999 Series III connectors with DLA certification are now manufactured and supplied by Glenair. These industry standard connectors are ideally suited for the broad range of harsh environmental land, sea, air, and space applications and are backed with Glenair's industry leading service, support, and availability. Marked with D38999 or Glenair COTS part numbering, these environmental crimp-contact connectors are available in plug, jam-nut and wall mount receptacle shell styles. Standard material and finish classes are supported including W (Cad/O.D. over Electroless Nickel), F (Electroless Nickel), T (Nickel-PTFE) and G (Space-Grade Electroless Nickel). Contact arrangements per MIL-STD-1560 and both normal and alternate polarizations are fully supported. Best of all, defense and commercial aerospace customers, as well as land and marine engineers and procurement specialists may now specify these mission critical interconnects directly from Glenair — the recognized service, support, and availability leader for the interconnect industry.

Reference

Overview: MIL-DTL-38999 Connector Series III Environmental

	D38999/26 and 233-105-26 Plug with Crimp Rear Release Contacts and Rear Accessory Threads MIL-DTL-38999 Connector Series III Environmental
	D38999/24 and 233-105-24 Jam-Nut Receptacle with Rear Release Crimp Contacts and Rear Accessory Options MIL-DTL-38999 Connector Series III Environmental
	D38999/20 and 233-105-20 Wall Mount Receptacle with Rear Release Crimp Contacts and Rear Accessory Option MIL-DTL-38999 Connector Series III Environmental
	D38999/20, /24, /26 and 233-105 Crimp Contact Series with Accessory Threads MIL-DTL-38999 Connector Series III Environmental How To Order Plug with Accessory Threads Jam Nut Receptacle and Wall Mount Receptacle

MIL-DTL-38999 Series III Hermetic Connectors. Class H Space-Grade Hermetic Qualified and Available.

Hermetic-class MIL-DTL-38999 Series III connectors are also available from Glenair with DLA certification. These hermetically sealed connectors are ideally suited for harsh environments where the environment exists under vacuum and must remain free of air or gas impurities via the ingress of foreign chemical substances. Such systems may be susceptible to the condensation of corrosive material, dielectric breakdown and the loss of insulation resistance between conductors. Typical applications include medical, geophysical, military aerospace and other industrial applications. Marked with D38999 or Glenair COTS part numbering, these hermetic class receptacles are available for MIL-DTL-38999 Connector Series III and IV in box mount, jam-nut, solder mount and weld mount shell styles. All standard material and finish classes are supported including Y (CRES, passivated), H (Space-Grade), and N (CRES, electrodeposited nickel). Contact arrangements per MIL-STD-1560. All standard and normal and alternate key and keyway polarizations are fully supported. Best of all, defense and commercial aerospace customers, as well as land and marine engineers and procurement specialists may specify these mission-critical MIL-DTL-38999 interconnects directly from Glenair — the recognized service, support, and availability leader for the interconnect industry.

Reference

Overview: MIL-DTL-38999 Series III Hermetic Connectors

	D38999/21 and 233-100-H2 Box Mount Hermetic Receptacle MIL-DTL-38999 Series III Box Mount Hermetic Receptacle Class H Space-Grade Hermetic Qualified and Available
	D38999/25 and 233-100-H5 Solder Mount Hermetic Receptacle MIL-DTL-38999 Series III Solder Mount Hermetic Receptacle Class H Space-Grade Hermetic Qualified and Available
	D38999/23 233-100-H7 and 233-100-DH7 Jam-Nut Mount Hermetic Receptacle MIL-DTL-38999 Series III Jam-Nut Mount Hermetic Receptacle Class H Space-Grade Hermetic Qualified and Available 233-100-H7 Hermetic, jam-nut mount receptacle 233-100-DH7 Hermetic, dual o-ring, jam-nut mount receptacle (Use mod code 1358 to select alternate o-rings)
	D38999/27 and 233-100-H8 Weld Mount Hermetic Receptacle MIL-DTL-38999 Series III Weld Mount Hermetic Receptacle Class H Space-Grade Hermetic Qualified and Available

MIL-DTL-38999 Qualified Connector Accessories

Reference

MIL-DTL-38999 Qualified Connector Accessories - Index

	MS27501 and MS27502 Protective Plug and Receptacle Covers
	MS27510 and MS27511 Protective Plug and Receptacle Covers
	D38999/22 Dummy Stowage Receptacle Threaded Coupling
	D38999/28 Jam Nut
	D38999/32 and D38999/33 Composite or Metal Protective Covers Plug and Receptacle • MIL-DTL-38999 Series III Threaded
	D38999/50 Dummy Stowage Receptacle Bayonet Coupling