Ms27497t8b35SA Amphenol Standard Ms27497 Seires Circular Mil Connector Electrical Wire Connector
MS27497T8B35SA Straight Plug, MIL-DTL-27497
The MS27497T8B35SA is a triple-start threaded circular electrical connector straight plug designed for aerospace, avionics, and industrial platforms. It conforms to MIL-DTL-27497 (formerly MS27497) requirements. Note: MS27497 is a distinct standard from MIL-DTL-38999 / GJB599 and is not directly form-fit-function interchangeable with D38999/J599 Series III connectors.
This straight plug features a finish class corresponding to the "T" prefix (shell material/finish per MS27497), shell size 8 (approximately equivalent to D38999 shell size B / 11), insert arrangement 8B-35 (13 contacts: 13 x #22D signal, Service Class M - sealed), socket contacts (S), and keying position A. The design supports EMI shielding, scoop-proof mating, self-locking threaded coupling, and removable crimp contacts. Note: keying position A is non-standard — verify availability with the supplier before procurement.
Product Features
- Conformant to MIL-DTL-27497 (MS27497) circular connector standard
- NOT directly interchangeable with MIL-DTL-38999 / GJB599 Series III connectors
- Triple-start threaded self-locking coupling for high-vibration retention
- Straight plug style for cable-end mating with receptacles
- Conductive shell finish for EMI shielding and corrosion resistance
- Sealed signal configuration with insert arrangement 8B-35: 13 x #22D signal contacts (Service Class M - sealed)
- Socket contacts (S) for mating with pin-contact receptacles
- Keying position A (non-standard — verify availability with supplier)
Technical Specifications - MS27497T8B35SA
| Parameter | Value |
|---|---|
| Part Number | MS27497T8B35SA |
| Standard | MIL-DTL-27497 (MS27497) |
| Connector Type | Straight plug (MS27497 style T) |
| Coupling | Triple-start threaded, self-locking |
| Shell Finish / Material | Per MS27497 style T designation (confirm with supplier) |
| Shell Size | 8 (approximately D38999 shell size B / 11) |
| Insert Arrangement | 8B-35 (13 contacts: 13 x #22D signal, Service Class M - sealed) |
| Contact Gender | S - Socket contacts (crimp, removable) |
| Keying / Polarization | A - Keying position A (non-standard — verify with supplier) |
| Cable End Style | Straight plug (cable end, mating with receptacle) |
| Shielding | EMI shielded (conductive shell) |
| Operating Temperature | Approximately -65°C to +150°C (confirm with supplier for exact class) |
| Compatible Mating | MS27497 receptacle of same shell size 8, arrangement 8B-35, pin contacts, and matching keying A. NOT compatible with D38999/J599 Series III receptacles. |
Part Number Breakdown
| Segment | Meaning |
|---|---|
| MS27497 | MIL-DTL-27497 circular connector standard |
| T | Connector style: straight plug (MS27497 designation) |
| 8 | Shell size 8 (approx. D38999 shell size B / 11) |
| B | Shell letter designator for insert arrangement capacity |
| 35 | Insert arrangement 35 (8B-35, 13 x #22D signal, Service Class M - sealed) |
| S | Socket contacts |
| A | Keying position A (non-standard — verify with supplier) |
Related options: MS27497R8B35PA receptacle (pin contacts); MS27497T8B35NA plug with normal keying (N); MS27497T10B35SA for shell size 10 (approx. D38999 size C / 13); MS27497T8B98SA non-sealed arrangement. Important: MS27497 (MIL-DTL-27497) and D38999/J599 (MIL-DTL-38999/GJB599) are separate standards and are NOT form-fit-function interchangeable. Keying position A is non-standard — confirm availability with supplier before procurement.
Compatible Applications
The MS27497T8B35SA straight plug is intended for platforms that require MIL-DTL-27497 compliant threaded interconnects with medium-count sealed signal circuits in shell size 8, using socket contacts. Typical use cases include:
- Aircraft and helicopter wiring harness cable ends (MIL-DTL-27497 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-27497 (MS27497) interfaces
Selection Guide
| Requirement | Recommended Choice |
|---|---|
| Straight plug, size 8 / arrangement 35 / sockets / keying A / sealed (MS27497) | MS27497T8B35SA - this product |
| Same plug with normal keying (N, standard) | MS27497T8B35SN |
| Mating receptacle with pin contacts | MS27497R8B35PA (or MS27497R8B35PN with normal keying) |
| Pin contact version of this plug | MS27497T8B35PA |
| Larger shell size (10) with same arrangement | MS27497T10B35SA |
| Non-sealed signal layout (Service Class I) | MS27497T8B98SA |
Installation Notes
- Verify shell size, insert arrangement, contact gender, and keying position (A, non-standard) before mating.
- Use the correct crimp tooling for #22D signal contacts specified by arrangement 8B-35.
- Fully engage the triple-start threaded coupling with the mating MS27497 receptacle until the self-locking mechanism is seated.
- Mate only with MS27497 receptacles of the same shell size, arrangement, opposite contact gender (pin), and matching keying (A). Note: 8B-35 is Service Class M (sealed) — suitable for applications requiring environmental sealing.
- Do NOT attempt to mate with D38999/J599 Series III receptacles — MS27497 is a different standard and is not interchangeable.
Why Choose MS27497T8B35SA
MIL-DTL-27497 Compliance
Choosing MS27497T8B35SA ensures compliance with MIL-DTL-27497 (formerly MS27497) requirements for programs that mandate this specific standard. The straight plug geometry supports reliable cable-end interconnect with sealed signal capability, socket contacts, and keying position A for aerospace and industrial systems. Note: this connector is NOT a direct replacement for D38999/J599 Series III parts.
Ordering Information
Order by the MS27497 designation MS27497T8B35SA. When requesting a quote, please confirm mating receptacle part number (pin contacts, keying A), shell finish class, contact plating, and required quantity. Note: 8B-35 is Service Class M (sealed); specify 8B-98 or 8B-02 for non-sealed applications. Keying position A is non-standard — confirm availability with supplier before ordering.
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