MIL-DTL -38999

Materials
Blue Bullet Shell
Normal - Aluminium alloy, plated olive drab cadmium, black anodized or nickel.
Hermetic - Steel, stainless steel & passivate or nickel.
Sizes - Series II - 08, 10, 12, 14, 16, 20, 24.
Series I & III - 09, 11, 13, 15,17, 19, 21, 23, 25
Blue Bullet Insulator
Normal - Thermoplastic fluoronated silicone elastomer.
Hermetic - Sintered glass insert.
Blue Bullet Contacts - Gold or gold/tin lead over copper alloy or nickel.
Crimp / PC tail ~ 3 to 128 Male or Female.
Accept 12 to 28 AWG terminating wire sizes
 
Coaxial contact # 8 for RG 180B/U, RG 195A/U
 
Electrical
Blue Bullet Current
 

Size

Normal

Hermetic

Volt drop

22D

5.0A

3.0A

73 millivolt max

20

7.5A

5.0A

55 millivolt max

16

13.0A

10.0A

49 millivolt max

12

23.0A

17.0A

42 millivolt max

Blue Bullet Test voltage V rms
 

Service

Sea level

21000m

Unmated

M

1300

800

350

I

1800

1000

400

II

2300

1000

500

Blue Bullet Contact Resistance
 

22D

14.6 mOhm Sign

20

7.3 MOhm Sign

16

3.8 MOhm Sign

12

1.7 MOhm Sign

Blue Bullet Insulation Resistance - > 5,000 M at 500 Vdc
Blue Bullet Shielding 90 dB to 100 MHz.
50 dB to 10,000 MHz.
 
Mechanical
Blue Bullet Contact to insulator holding force.
22D - 45 N
8 - 110 N
Blue Bullet Mechanical operations - 500 Min
Blue Bullet Vibration: - sine 10 to 2000Hz 30g.
- random 100 to 300 Hz 5 g²/Hz.
Blue Bullet Physical shocks - 300g. 3ms in the 3 axes
 
Environmental
Blue Bullet Working temperature :
Cadmium plated -55 to +125ºC.
Nickel plated -65 to +200ºC.
Blue Bullet Resistance to salt spray:
Normal plating 500 hours per. MIL-STD 1344 method 1001, test B & NFC 93422.
Nickel plated - 48 hours.
Blue Bullet Damp Heat: MIL-C-38999 - 10 cycles 24 hours.
Blue Bullet Sealing: Mated connector < 16 cm3/hr under a differential pressure of 2.1 bar.
Blue Bullet Thermal shock: as MIL-C 38999 para. 3-7, 3-8.
 
Types
Blue Bullet Series 1
MS 27466 - Wall mount receptacle
MS 27467 - Straight plug with EMI grounding
MS 27468 - Jam nut receptacle
MS 27469Y - Hermetic wall mount receptacle
MS 27470Y - Hermetic jam nut receptacle
MS 27471Y - Hermetic solder mount receptacle
MS 27496E - Box mount receptacle
MS 27505E - Box mount receptacle, rear panel mounting
MS 27656 - Wall mount receptacle, rear panel mounting
MS 27661 - Straight plug, lanyard release
MS 27662E - Through bulkhead receptacle
Blue Bullet Series 2
MS 27472 - Wall mount receptacle
MS 27473 - Straight plug
MS 27474 - Jam nut receptacle
MS 27475Y - Hermetic wall mount receptacle
MS 27476Y - Hermetic box mount receptacle
MS 27477Y - Hermetic jam nut receptacle
MS 27478Y - Hermetic solder mount receptacle
MS 27497 - Wall mount receptacle, back panel mounting
MS 27499E - Box mount receptacle
MS 27508E - Box mount receptacle, back panel mounting
MS 27513E - Box mount receptacle, long grommet
Blue Bullet Series 3
D38999_20 - Wall mount receptacle
D38999_21 - Hermetic sealed box mount receptacle
D38999_23 - Hermetic sealed jam nut receptacle
D38999_24 - Jam nut receptacle
D38999_25 - Hermetic sealed solder mount receptacle
D38999_26 - Straight plug
D38999_27 - Hermetic sealed weld mount receptacle
D38999_29 - Lanyard release plug, pin contacts
D38999_30 - Lanyard release plug, socket contacts
Blue Bullet Series 4
D38999_40 - Wall mount receptacle
D38999_41 - Hermetic box mount receptacle
D38999_42 - Box mount receptacle
D38999_43 - Hermetic jam nut receptacle
D38999_44 - Jam nut receptacle
D38999_45 - Hermetic solder mount receptacle
D38999_46 - Straight plug with EMI grounding
D38999_47 - Straight plug
D38999_48 - Hermetic weld mount receptacle
D38999_49 - In-line receptacle
38999

MIL-DTL-38999  (originally MIL-C-38999) Connector

Standard and High Density, multi-pin, lightweight, miniature military circular connectors

 

For all military and aeronautical purposes, tactical missiles, fighting vehicles. instrumentation (Series II) and control, etc. The MIL-DTL-38999 (originally MIL-C-38999) specification covers four series of miniature, high density, bayonet, threaded, or breech coupling, circular, environment resistant, electrical connectors using removable crimp or fixed hermetic solder contacts, and are capable of operation within a temperature range of -65°C to +200°C.

All series include rear release removable pin and socket contacts with crimp termination. All series are designed to assure proper orientation of the mating halves prior to electrical circuit closure. All series include hermetically sealed receptacles with fixed contacts for solder termination. All series include EMI shielding capability. Series I, III, and IV connectors with conductive finishes provide electrical continuity between mated shells prior to contact engagement and have the contacts so located as to be protected from handling damage and inadvertent electrical contact. Series II provides low silhouette for minimum size and weight and includes connectors which provide shell-to-shell electrical continuity when mated

MIL-DTL-38999 (MIL-C-38999) Series I

High Density bayonet connectors, "scoop proof" crimp rear release contacts. MIL-DTL-38999 Series I Connectors are a bayonet coupling subminiature configuration with high contact density for harsh-environment applications. These environment-resisting connectors are 100% scoop-proof. Pins are recessed in elongated shells to prevent the possibility of bending contacts when plugs are scooped into the mating receptacles.

.....

MIL-DTL-38999 (MIL-C-38999) Series II

Bayonet connectors, "low profile", crimp rear release contacts. These connectors were designed for military and commercial applications where the prime requirements are lower profile and lighter weight. Reduction of both size and weight is achieved through the use of thinner shell walls and shorter bodies. These design restrictions reduce the RFI attenuation characteristics and eliminate the scoop protection, but produce an excellent general-purpose, lightweight connector. Compared with MIL-C-38999 Series I, Series II connectors achieved up to 20% reduction in mated pair length, up to 39% reduction in outside diameter and up to 40% reduction in weight

.....

MIL-DTL-38999 (MIL-C-38999) Series III

Triple start thread "vibration resist" connectors, crimp rear release contacts. "Scoop proof" with 'Metric' accessory threads for greater strength and support of backshells.

.....

MIL-DTL-38999 (MIL-C-38999) Series IV Breech lock, quick disconnect connectors, crimp rear release. Breech-Lok, Series IV connectors feature a coupling mechanism that only requires 90° of rotation to engage and disengage. This rugged design distributes the coupling load over solid-metal lands while internal-drive threads provide the mechanical advantage needed to ensure positive engagement of the contacts and interfacial seals.


The above four Series are NOT intermateable with each other.

 

MIL-C-38999 connectors Download MIL-DTL-38999 Data Sheet  

 

SJ 38999

Amphenol have introduced the High Density HD38999 family of connectors to work with existing mil-specified 38999 shells. To end users familiar with standard 38999 connectors, this family of high density connectors will look, feel, and perform just like the mil-qualified connectors. Utilizing an existing mil-qualified 39029 size 23 contact and mil-qualified shells, the new system is usually a drop-in connector. Even though the HD38999 has 30% more contacts, it still performs to minimum electrical requirements of standard 38999 connectors. HD38999 are available with from 9 to 187 contacts.

MIL-C-38999 connectors Download HD38999 Data Sheet

Features
Blue Bullet Conform to MIL-DTL-38999 (originally MIL-C-38999)
Blue Bullet BS9520 G0003
Blue Bullet Quick disconnect bayonet or triple thread coupling for positive mating in 360º turn.
Blue Bullet 9 shell sizes,
Series I & III - 9 through 25
Series II - 8 through 24
Blue Bullet Positive metal to metal coupling for excellent EMI shielding
Blue Bullet Locksmith keying orientation (machined into shell)
Blue Bullet Crimp contacts to MIL-C-39029, sizes 22D, 20, 16 & 12
Blue Bullet Up to 128 contacts (22D)
Blue Bullet All Series share common insert arrangements accepting mixed layout or coaxial/triaxial contacts
Blue Bullet Fluorosilicone interfacial 'environmental' seal between contacts and shell
Blue Bullet Chamfered conical entry to interfaces to aid proper mating of contacts
Blue Bullet Filtered types available.
Blue Bullet D38999 connectors are also available in a wide range of finishes and shell materials including anodic, zinc cobalt, aluminum, electroless nickel, olive drab cadmium and more.

An extensive range of Backshells to suit D38999 connectors are available to order seperately

 


FURTHER INFORMATION
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ITT Cannon Datasheet for MIL-C 38999

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Sunkye MIL-DTL-38999 Series connector 2
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