D38999/32Z19N - MIL-DTL-38999 Series III Plug Dust Cap | Size 19 | Black Zinc-Nickel
부품 번호: D38999/32Z19N ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.95 | $5,975.00 |
| 1,000 | $10.4 | $10,400.00 |
D38999/32Z19N 개요
A MIL-DTL-38999 protective cap is a mechanical accessory designed to mate with the connector shell threads of MIL-DTL-38999 Series I, II, III, or IV plugs or receptacles. These caps are mandatory for any deployed military connector system because exposed pin fields and threaded coupling surfaces are vulnerable to contamination that can degrade electrical performance, cause intermittent failures, or prevent proper mating in the field. The D38999/32Z designation specifically targets plug (not receptacle) connectors and mates with the threaded plug shell using the same triple-start self-locking coupling threads as the main connector.
Key features include shell size 19 compatibility, black zinc-nickel plating per MIL-DTL-38999 (corrosion resistant, conductive for EMI grounding, RoHS compliant over older cadmium options), and a lanyard or chain retention option for captive attachment to the host cable assembly. The dust cap typically includes a rubber sealing gasket or O-ring rated for IP67/IP68 environmental sealing when properly installed. Operating temperature range typically spans -65C to +200C with chemical resistance to common aerospace solvents, fuels, and hydraulic fluids.
The D38999/32Z19N uses standardized MIL-DTL-38999 Series III mating interface geometry, meaning the cap is form-fit-function compatible with any QPL-qualified Series III plug connector of shell size 19. This includes insert arrangements ranging from 11 to 32 contacts depending on contact density. The cap threads match the plug's triple-start coupling threads, providing a positive mechanical lock and environmental seal identical to the main connector mating interface.
Typical applications include military ground vehicles (radios, navigation, ECU harnesses), aerospace avionics (flight control, communication, navigation bays), naval shipboard electronics (sonar, radar, fire control), and ruggedized industrial machinery (downhole oil/gas, mining, rail). In all of these, the cap protects the connector during shipping, storage, transit between operational sites, and periods of disconnection in the field.
When selecting a D38999/32Z19N cap, verify the host connector is Series III shell size 19 with the correct thread type (standard or metric, although military applications use imperial). The cap does not need to match the insert arrangement, only the shell size and Series designation. For Series I or Series II plugs, the equivalent part numbers are D38999/32 (Series I) and a different Series II part number, both cross-referenced in the MIL-DTL specification cross-reference PDF.
This page synthesizes cross-vendor availability, MIL-spec background, and practical selection guidance not consolidated in any single distributor listing, including same-vendor QPL alternatives and competitor equivalents qualified to the same MIL-DTL-38999 specification.
드롭인 대체품: D38999/32Z19N — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
D3899932Z19N
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
YDTS32Z19NV0010000
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
D38999/32Z19B
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
D38999/32W19N
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
8D32Z19N
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
J599/32Z19N
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
D38999/32Z19N 사양
| Part Type | Protective Plug Cap (Dust Cover) |
| Specification | MIL-DTL-38999 Series III |
| Part Number Family | D38999/32 (Plug Cover) |
| Shell Size | 19 |
| Finish | Black Zinc-Nickel |
| Compatible Connector Series | MIL-DTL-38999 Series I, II, III |
| Compatible Connector Type | Plug (with thread coupling) |
| Material | Aluminum alloy (per MIL-DTL-38999) |
| Sealing | Rubber gasket/O-ring for environmental seal |
| 실장 유형 | Thread-on (mates with plug threads) |
| 동작 온도 | -65C to +200C (typical MIL spec range) |
| Standard Compliance | MIL-DTL-38999 |
| RoHS 상태 | Compliant (zinc-nickel is RoHS-compliant finish) |
| Color | Black |
| Accessory Type | Dust Cap / Protective Cover |
D38999/32Z19N standard 핀 구성 가이드
D38999/32Z19N(standard 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: D38999/32Z19N.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
D38999/32Z19N 적합 용도: 6 애플리케이션s: Military Ground Vehicle Electronics, Aerospace Avionics Bay Equipment, Naval Shipboard Electronics, Ruggedized Industrial Machinery, Tactical Radio and C4ISR Systems, Missile and Munitions Handling.
Military Ground Vehicle Electronics
The D38999/32Z19N dust cap protects MIL-DTL-38999 Series III plug connectors on military ground vehicle harnesses - including radios, GPS/navigation units, ECU wiring, and tactical network nodes - from dust, mud, and water ingress during off-road operations. The Z black zinc-nickel finish resists corrosion from deicing salts and battlefield contaminants while remaining RoHS-compliant. With operating range of -65C to +200C, the cap survives arctic deployments and desert heat without cracking. The Series III triple-start threaded mating ensures the cap stays locked under high-vibration conditions (44g sine per MIL-STD-810). For radio and C4ISR systems requiring frequent unmating in the field, the cap is mandatory during transit and storage, preventing bent pins and contamination that would otherwise cause field failures. Compatible with all Series III shell size 19 plugs regardless of insert arrangement.
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Aerospace Avionics Bay Equipment
In commercial and military avionics, the D38999/32Z19N protects flight-critical connector interfaces during maintenance, transit between hangars, and periods of disconnection. Series III connectors are specified throughout commercial airliner avionics bays, military helicopter wire harnesses, and UAV ground support equipment. The dust cap's environmental sealing (rubber gasket) provides IP67-equivalent protection against fuel vapor, hydraulic fluid, and wash-down solvents encountered in ground operations. The Z black zinc-nickel finish meets FAA and EASA flammability/smoke requirements when used on flight-critical harnesses and is compatible with standard aerospace deicing and cleaning chemicals. Avionics technicians routinely attach the cap via lanyard or chain to prevent FOD loss during maintenance cycles.
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Naval Shipboard Electronics
Naval applications use the D38999/32Z19N for sonar, radar, fire control, and combat system connectors exposed to salt spray, humidity, and shipboard vibration. The Z black zinc-nickel finish provides 1000+ hour salt fog resistance per MIL-STD-810 Method 509, making it suitable for topside and below-deck installations. The cap's threaded Series III mating ensures a positive lock during heavy ship motion and prevents accidental disengagement. The MIL-DTL-38999 Series III specification was originally developed with naval requirements in mind, and QPL vendors (Glenair, Amphenol, TE/Deutsch) all certify marine-grade corrosion resistance. The dust cap is especially critical for connectors on weather decks, exposed bridge equipment, and weapons handling systems where unprotected pin fields would corrode within weeks.
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Ruggedized Industrial Machinery
Heavy industrial environments - mining equipment, oil/gas downhole tools, rail rolling stock, and construction machinery - use MIL-DTL-38999 connectors because of their mechanical robustness. The D38999/32Z19N dust cap protects these connectors during equipment transport, storage between shifts, and exposure to dust-laden atmospheres. The Z finish resists corrosive chemicals found in mining (sulfides, acids) and oilfield (H2S, brine) environments. Industrial operators choose Series III over commercial connectors specifically for the cap ecosystem, which keeps pin fields clean in equipment that may sit unused for months. The cap threads match standard Series III plugs from major industrial connector suppliers, enabling mixed-vendor sourcing.
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Tactical Radio and C4ISR Systems
Modern tactical radios, satellite terminals, and battlefield network nodes (WIN-T, JTRS, Link 16) use MIL-DTL-38999 Series III connectors because of their EMI shielding and field durability. The D38999/32Z19N protects RF and data connectors when the radio is not mated to its antenna, antenna mount, or vehicle docking station. The Z finish is electrically conductive, maintaining ground continuity for EMI/EMC compliance even when the cap is installed. Field operators attach the cap via lanyard to prevent loss during rapid deployment scenarios. The cap's lightweight aluminum construction adds minimal weight to soldier-carried or vehicle-mounted systems, and its environmental sealing ensures rapid remating after exposure to weather.
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Missile and Munitions Handling
Missile launchers, munitions handling equipment, and weapon pylons use MIL-DTL-38999 connectors for arming, telemetry, and guidance interfaces. The D38999/32Z19N protects these critical pin fields from contamination during storage in magazines, transport on loading vehicles, and exposure to propellant residue. The Z black zinc-nickel finish is rated for the explosive atmosphere and rapid temperature cycling typical of munitions handling. The cap's secure threaded mounting prevents accidental disconnection during shock events (typical missile launch shock >100g). For Navy, Army, and Air Force munitions programs, the dust cap is mandatory per MIL-STD-1576 and equivalent handling specifications, ensuring the weapon system remains mission-ready.
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추천 제품 요약
엔지니어링 참조 데이터: D38999/32Z19N — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | D3899932Z19N | YDTS32Z19NV0010000 | 8D32Z19N | J599/32Z19N |
|---|---|---|---|---|---|
| Brand | Glenair | Amphenol PCD | TE Connectivity | Souriau | Airoadcon |
| Package | MIL-DTL-38999 Series III Plug Cover, Size 19 | MIL-DTL-38999 Series III Plug Cover, Size 19 - same | MIL-DTL-38999 Series III Plug Cover, Size 19 - same | MIL-DTL-38999 Series III Plug Cover, Size 19 - same | MIL-DTL-38999 Series III Plug Cover, Size 19 - same |
| Finish Code | Z (Black Zinc-Nickel) | Z (Black Zinc-Nickel) | Z (Black Zinc-Nickel) | Z (Black Zinc-Nickel) | Z (Black Zinc-Nickel) |
| Shell Size | 19 | 19 | 19 | 19 | 19 |
| Connector Series | MIL-DTL-38999 Series III | MIL-DTL-38999 Series III | MIL-DTL-38999 Series III | MIL-DTL-38999 Series III | MIL-DTL-38999 Series III |
| RoHS Compliance | Yes (Z finish) | Yes (Z finish) | Yes (Z finish) | Yes (Z finish) | Yes (Z finish) |
| Cover Type | Plug (/32) | Plug (/32) | Plug (/32) | Plug (/32) | Plug (/32) |
| Material | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy |
주요 차별점
- Multi-vendor QPL-qualified sourcing (vs Single-vendor captive accessories)
- RoHS-compliant Z finish (vs D38999/32Z19B (olive-drab cadmium))
- Series III triple-start threaded coupling (vs Series I bayonet or Series II low-screw caps)
설계 노트
Do not confuse the D38999/32 plug cover with the D38999/33 receptacle cover - they have different thread sizes and mating interfaces even at the same shell size. The /32 (plug) cap threads onto the plug shell; the /33 (receptacle) cap mounts onto the receptacle. Using the wrong cover will not seat properly and may damage the connector threads. Verify the host connector is a PLUG (with external threads) before specifying /32.
Confirm the host connector is Series III (triple-start threads) and not Series I (bayonet) or Series II (low-screw). The D38999/32Z19N uses Series III triple-start thread geometry and will not fit Series I or Series II connectors even at the same shell size. The shell size designation (19) is consistent across series, but the thread type differs significantly. Series I uses bayonet coupling; Series II uses a different thread pitch.
Attach the cap via stainless steel lanyard or chain to prevent FOD loss in deployed environments. MIL-STD-1576 and equivalent handling specifications recommend captive attachment for caps used on munitions, weapons, and tactical equipment. The lanyard attachment point on the cap is sized for standard MS-type lanyards; substitute only with equivalent-strength hardware rated for the deployment environment.
규정 준수 정보
RoHS compliance achieved via Z (black zinc-nickel) finish instead of legacy cadmium plating. MIL-DTL-38999 qualified by multiple QPL vendors including Glenair, Amphenol PCD, and TE/Deutsch. Not subject to AEC-Q100 (automotive IC qualification) as this is a passive mechanical accessory.
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