M85049/88S-15N Backshell with Self-Locking Coupling and Electroless Nickel Finish for EMI/RFI Shield Termination
The M85049/88S-15N is a straight banding-style cable backshell designed for circular electrical connectors. It is the AS85049 / GJB1784 standard part number, interchangeable with J1784/88S-15N, and is commonly used with GJB599 / D38999 Series III and Series IV connectors in shell size 15.
As an /88S-type accessory, the M85049/88S-15N provides self-locking coupling, EMI/RFI shield termination via banding, shrink-boot accommodation, and mechanical strain relief. The electroless nickel finish (N) supports corrosion resistance while maintaining electrical continuity for shielded harness assemblies.
- Conformant to national standard GJB1784 (equivalent to AS85049)
- Interchangeable with cross-reference part number J1784/88S-15N
- Straight banding backshell for EMI/RFI shield termination with AS85049/128 style bands
- Self-locking coupling (S) for improved vibration resistance during installation and service
- Shrink-boot accommodation for environmental sealing over the cable exit
- Electroless nickel plating finish denoted by the N suffix
- Shell size 15 for D38999 / GJB599 Series III and IV circular connector interfaces
| Parameter | Value |
|---|---|
| Part Number | M85049/88S-15N |
| Equivalent Part Number | J1784/88S-15N |
| Accessory Type | M85049/88S straight self-locking banding backshell |
| Function | EMI/RFI shield band termination with shrink-boot accommodation |
| Shell Size | 15 |
| Coupling Style | S - Self-locking |
| Finish | N - Electroless nickel plating |
| Connector Thread | M22 x 1 - 6H |
| D Max (mm) | 32.5 |
| L Max (mm) | 34.3 |
| Cable Entry (typical) | Entry 02: 11.1 mm / Entry 03: 14.3 mm (confirm when ordering) |
| Compatible Connectors | GJB599 Series III & IV / D38999 Series III & IV / EN3645 |
| Segment | Meaning |
|---|---|
| M85049 | AS85049 / GJB1784 connector accessory series (interchangeable naming with J1784) |
| /88 | Straight banding backshell with shield termination and shrink-boot style |
| S | Self-locking coupling (use dash form for non-self-locking variants) |
| -15 | Shell size 15 |
| N | Electroless nickel finish |
Related options: M85049/88S-15W uses olive drab cadmium finish; angled versions include M85049/89 (45 degree) and M85049/90 (90 degree). Full procurement codes may also include cable-entry size suffixes such as 02 or 03. There is no functional difference between model prefixes marked "M85049" and related AS85049 designations.
- Aircraft and helicopter wiring harnesses needing 360 degree shield continuity
- Avionics LRUs, radar, and communication equipment
- Ground vehicles and rugged electronic enclosures
- Shipboard and industrial connector assemblies with shrink-boot sealing
- High-vibration installs where self-locking coupling improves retention
| Requirement | Recommended Accessory |
|---|---|
| Straight banding / EMI shield termination | M85049/88 (this product family) - M85049/88S-15N |
| 45 degree banding backshell | M85049/89 series |
| 90 degree banding backshell | M85049/90 series |
| Cable clamp only, no EMI banding | M85049/38, M85049/49, or M85049/47 series by connector series and exit angle |
- Confirm shell size 15, self-locking style (S), finish (N), and cable-entry size before ordering.
- Use compatible banding tools and AS85049/128 style termination bands for shield termination.
- Install the shrink boot over the accessory barrel after band termination to improve environmental sealing.
- Verify connector series compatibility: /88S accessories are intended for Series III / IV interfaces, not Series I / II clamp styles.
- Where required by the harness drawing, add anti-loosening methods such as safety wire, thread-locking compound, or full heat-shrink over the accessory.
Choosing the M85049/88S-15N ensures form-fit-function compatibility with J1784/88S-15N supply chains while meeting GJB1784 / AS85049 requirements. The straight self-locking banding geometry supports EMI/RFI shield continuity, shrink-boot sealing, and reliable retention behind Series III / IV circular connectors in aerospace and industrial interconnect systems.
Order by the AS85049 designation M85049/88S-15N, or cross-reference as J1784/88S-15N, depending on your procurement standard. When requesting a quote, please confirm cable-entry size (02/03), mating connector part number, and required quantity.
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