Ms27484t12b35p Mil-Dtl-38999 Series Amphenol Standard Circular Wire Mil Connector
MS27484T12B35P Threaded Circular Plug, MIL-DTL-27484
The MS27484T12B35P is a threaded circular electrical connector plug designed for aerospace, avionics, and industrial platforms. It conforms to MIL-DTL-27484 (formerly MS27484) requirements. Note: MS27484 is a distinct standard from MIL-DTL-38999 / GJB599, from MIL-DTL-27497 (MS27497), and from MIL-DTL-27508 (MS27508), and is not directly form-fit-function interchangeable with D38999/J599 Series III, MS27497, or MS27508 connectors.
This threaded plug features shell size 12 (approximately equivalent to D38999 shell size C / 13), insert arrangement 12B-35 (13 contacts: 13 x #22D signal contacts, Service Class M - sealed), pin contacts (P), and normal keying (no suffix). The "T" style designation indicates a threaded plug. The design supports EMI shielding and removable crimp contacts.
Product Features
- Conformant to MIL-DTL-27484 (MS27484) circular connector standard
- NOT directly interchangeable with MIL-DTL-38999 / GJB599 Series III, MIL-DTL-27497 (MS27497), or MIL-DTL-27508 (MS27508) connectors
- Threaded coupling for secure mating retention
- Threaded plug style (T designation) for cable-end or panel-mount applications
- Conductive shell for EMI shielding and corrosion resistance
- Sealed signal configuration with insert arrangement 12B-35: 13 x #22D signal contacts (Service Class M - sealed)
- Pin contacts (P) for mating with socket-contact receptacles
- Normal keying (no suffix) for standard polarization and anti-mismatch mating
Technical Specifications - MS27484T12B35P
| Parameter | Value |
|---|---|
| Part Number | MS27484T12B35P |
| Standard | MIL-DTL-27484 (MS27484) |
| Connector Type | Threaded plug (MS27484 style T) |
| Coupling | Threaded |
| Shell Finish / Material | Per MIL-DTL-27484 requirements (confirm with supplier for exact finish) |
| Shell Size | 12 (approximately D38999 shell size C / 13) |
| Insert Arrangement | 12B-35 (13 contacts: 13 x #22D signal, Service Class M - sealed) |
| Contact Gender | P - Pin contacts (crimp, removable) |
| Keying / Polarization | Normal (no suffix) - standard keying |
| Cable End Style | Threaded plug (cable end, mating with receptacle) |
| Shielding | EMI shielded (conductive shell) |
| Operating Temperature | Per MIL-DTL-27484 specification (confirm with supplier for exact range) |
| Compatible Mating | MS27484 receptacle of same shell size 12, arrangement 12B-35, socket contacts, and normal keying. NOT compatible with D38999/J599 Series III, MS27497, or MS27508 receptacles. |
Part Number Breakdown
| Segment | Meaning |
|---|---|
| MS27484 | MIL-DTL-27484 circular connector standard |
| T | Connector style: threaded plug |
| 12 | Shell size 12 (approx. D38999 shell size C / 13) |
| B | Shell letter designator for insert arrangement capacity |
| 35 | Insert arrangement 35 (12B-35, 13 x #22D signal, Service Class M - sealed) |
| P | Pin contacts |
Related options: MS27484T12B35S plug with socket contacts; MS27484T10B35P for shell size 10 (approx. D38999 size B / 11); MS27484T12B98P non-sealed arrangement (Service Class I); MS27484T12B02P high-power arrangement. Important: MS27484 (MIL-DTL-27484), MS27497 (MIL-DTL-27497), MS27508 (MIL-DTL-27508), and D38999/J599 (MIL-DTL-38999/GJB599) are separate standards and are NOT form-fit-function interchangeable.
Compatible Applications
The MS27484T12B35P threaded plug is intended for platforms that require MIL-DTL-27484 compliant threaded interconnects with medium-count sealed signal circuits in shell size 12, using pin contacts. Typical use cases include:
- Aircraft and helicopter wiring harness cable ends (MIL-DTL-27484 standard)
- Avionics LRUs, radar, and communication equipment
- Ground vehicles and rugged electronic enclosures
- Shipboard and outdoor equipment requiring sealed circular connectors
- Programs that standardize on MIL-DTL-27484 (MS27484) interfaces
Selection Guide
| Requirement | Recommended Choice |
|---|---|
| Threaded plug, size 12 / arrangement 35 / pins / normal keying / sealed (MS27484) | MS27484T12B35P - this product |
| Mating receptacle with socket contacts | MS27484R12B35SN |
| Socket contact version of this plug | MS27484T12B35S |
| Smaller shell size (10) with same arrangement | MS27484T10B35P |
| Non-sealed signal layout (Service Class I) | MS27484T12B98P |
Installation Notes
- Verify shell size, insert arrangement, contact gender, and normal keying before mating.
- Use the correct crimp tooling for #22D signal contacts specified by arrangement 12B-35.
- Fully engage the threaded coupling with the mating MS27484 receptacle until securely seated.
- Mate only with MS27484 receptacles of the same shell size, arrangement, opposite contact gender (socket), and normal keying. Note: 12B-35 is Service Class M (sealed) — suitable for applications requiring environmental sealing.
- Do NOT attempt to mate with D38999/J599 Series III, MS27497, or MS27508 receptacles — MS27484 is a different standard and is not interchangeable.
Why Choose MS27484T12B35P
MIL-DTL-27484 Compliance
Choosing MS27484T12B35P ensures compliance with MIL-DTL-27484 (formerly MS27484) requirements for programs that mandate this specific standard. The threaded plug geometry supports reliable cable-end interconnect with sealed signal capability, pin contacts, and normal keying for aerospace and industrial systems. Note: this connector is NOT a direct replacement for D38999/J599 Series III, MS27497, or MS27508 parts.
Ordering Information
Order by the MS27484 designation MS27484T12B35P. When requesting a quote, please confirm mating receptacle part number (socket contacts), shell finish class, contact plating, and required quantity. Note: 12B-35 is Service Class M (sealed); specify 12B-98 or 12B-02 for non-sealed applications.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.