AERO MS27484T14F35SC
- MIL-DTL-38999 Series II RFI grounding plug with integral 360° grounding spring fingers
- Shell Size 14 with 37 crimp socket contacts in insert arrangement 14-35
- Class T aluminum shell with electroless nickel finish for corrosion resistance
- Operating temperature range of −65°C to +175°C with IP67 environmental sealing
- Polarizing position F-C for mis-mate protection in multi-connector avionics panels
Aerospace and defense systems demand electrical connections that maintain integrity under extreme conditions, from high-altitude flight to deep-space missions. The AERO MS27484T14F35SC is a military-specification circular connector engineered to meet these rigorous requirements, providing reliable signal and power transmission in critical avionics, satellite, and ground defense systems.
This connector combines a compact form factor with high-density contact configuration, making it ideal for space-constrained applications where multiple connections must be made in limited space. Its hermetic sealing provides protection against moisture, dust, and pressure changes, while the three-start threaded coupling ensures quick, secure mating that resists vibration-induced loosening during dynamic operations.
Related Products For Your Business
The AERO MS27484T14F35SC is a Shell Size 14, MIL-DTL-38999 Series II RFI grounding straight plug with insert 14-35, 37 size #20 crimp socket contacts, and polarizing position F-C. The C keying sub-variant is the third of six available angular offsets within the F polarizing position, enabling system integrators to deploy three or more physically adjacent connectors of identical shell size and insert arrangement — each uniquely keyed and incapable of mating with its neighbors — in dense avionics panels and satellite equipment bays where spatial segregation of circuits is not possible. The integral RFI grounding spring delivers 360° cable shield bonding at the connector interface, achieving 45dB EMI attenuation from 100MHz to 10GHz, making the MS27484 family the correct choice wherever cable shield continuity must be guaranteed at every reconnection cycle without dependence on backshell grounding discipline.
For comparison with related MIL-DTL-38999 Series II connectors in our inventory:
| Product | Shell | Contacts | Keying | Differentiator |
|---|---|---|---|---|
| MS27484T14F35SC | 14 | 37 | F-C | RFI grounding plug, keying C |
| MS27484T14F35SB | 14 | 37 | F-B | RFI grounding plug, keying B |
| MS27484T14F35SA | 14 | 37 | F-A | RFI grounding plug, keying A |
Military-Grade Reliability & Performance
Built to MIL-DTL-38999 Revision N under Aero-Electric’s AS9100:2016-certified manufacturing program, the MS27484T14F35SC undergoes the full Series II qualification suite including 500-hour salt spray per ASTM B117, five-cycle thermal shock from −65°C to +175°C, mechanical shock, random vibration per MIL-STD-810, and 1,500 VRMS dielectric withstanding voltage at sea level. The C keying position is fully standardized across all QPL-qualified manufacturers — a SC-keyed plug from Aero-Electric will mate only with SC-keyed receptacles from Amphenol, TE Connectivity, Souriau, Glenair, or any other QPL-listed supplier, ensuring that keying-based mis-mate protection is preserved even when components are cross-sourced across program lots.
Supply Chain & Quality Assurance
The MS27484T14F35SC is manufactured by Aero-Electric Connector, Inc. (Conesys), a QPL-qualified, AS9100:2016-certified (DQS Reg. No. 10015570) connector manufacturer. Cross-source equivalents are available from Amphenol Aerospace, TE Connectivity Deutsch, Souriau, ITT Cannon, and Glenair — all sharing identical insert arrangement, contact tooling, and keying-compatible mating receptacles. Every shipment includes certificates of conformance, lot traveler records, and incoming inspection documentation. Inventory is stored in ESD-compliant and MSL-rated packaging with full date code traceability.
Selection Guide & Application Notes
The MS27484T14F35SC completes the standard three-connector keying triplet A/B/C for multi-connector panel zones. Mating receptacles must be keyed to position F-C — compatible types include MS27472T14F35PC (front wall mount) and MS27497T14F35PC (jam nut). When specifying all three variants together, assign keying positions systematically: A for the primary circuit, B for the first redundant or secondary circuit, C for the third circuit — and document this assignment in the harness design drawing to prevent substitution errors during panel rework. A SAE-AS85049 strain relief backshell is mandatory; for maximum low-frequency shielding performance below 100MHz, supplement the integral grounding spring with an EMI backshell with 360° cable shield clamp.
FAQ
What is unique about the C keying sub-variant compared to A and B?
The C sub-variant provides the third distinct angular master key offset within the F polarizing position. It is mechanically incompatible with both A- and B-keyed receptacles, enabling three physically adjacent connectors of identical shell size and insert arrangement to be uniquely protected against cross-connection without any spatial separation between them.
Are all electrical specifications identical to the MS27484T14F35SA and SB?
Yes. The C keying sub-variant carries no differences in electrical, environmental, or mechanical performance — 37 contacts, #20 size socket, 45dB EMI shielding, −65°C to +175°C, IP67, 500-hour salt spray, and 500 mating cycles are identical across all keying sub-variants of the MS27484T14F35S family.
Which receptacles mate with the MS27484T14F35SC?
Any MIL-DTL-38999 Series II receptacle in Shell Size 14, insert 35, keying position F-C — including MS27472T14F35PC (front wall mount), MS27497T14F35PC (jam nut), and QPL-equivalent parts from Amphenol, Souriau, TE Connectivity, Glenair, and ITT Cannon.
Is the C keying position standardized across all manufacturers?
Yes. The angular offset for each keying sub-variant (A through F) is defined within MIL-DTL-38999 and is identical across all QPL-qualified manufacturers. An SC-keyed plug from Aero-Electric will mate exclusively with SC-keyed receptacles regardless of manufacturer, ensuring full interoperability in cross-sourced programs.
When should I specify A, B, and C together in one design?
Specify the A/B/C triplet whenever three connectors of identical shell size and insert arrangement must occupy the same panel zone or harness routing area, and circuit mis-connection would cause latent faults or safety hazards. Typical cases include triple-redundant flight control, primary/secondary/tertiary power rails, and multi-channel data bus interfaces sharing a common connector standard.
What backshell accessories are required?
A SAE-AS85049 strain relief backshell is mandatory for all cable terminations. The integral grounding spring handles high-frequency EMI bonding (100MHz–10GHz) at the connector interface; for applications requiring shielding continuity below 100MHz or in high-field EMC environments, add an EMI backshell with a 360° cable shield clamp for full-spectrum coverage.
