Description
EMCA CONNECTOR ACCESSORIES / B97-405
Standard Mounting Flanges & Nut Plates
A robust mounting flange for square-flange circular receptacles, with a choice of formed or self-locking threads. The C-shaped plate sits behind the mounting panel and aligns with the receptacle flange, keeping the threaded fixings together for straightforward installation.
Configuration at a glance
- Product series: B97-405
- Shell sizes: 8, 9/10, 11/12, 13/14, 15/16, 17/18, 19/20, 21/22, 23/24, 25, 28, 32, 36
- Thread options: M for metric; U for UNC.
- Retention: Formed threads as standard; optional SL stainless steel self-locking wire inserts.
- Material: Aluminium alloy.
Material & finish options
| Code | Finish | Salt spray resistance | Conductive |
|---|---|---|---|
| 3 | Black anodized | 500+ hours | No |
| M | Clear passivation, SurTec 650 | 96 hours | Yes |
Both listed finishes are RoHS/REACH compatible. Other finishes are available on enquiry.
How to order
Choose the series, thread code, material/finish code and two-digit shell-size code, then add SL if required.
Order example: B97-405-M305
Standard version · metric thread · black anodized · shell size 15/16 (size code 05).
Add SL when self-locking thread inserts are required: B97-405-M305SL.
Shell size codes & threads
| Shell size | Size code | Metric thread | UNC thread |
|---|---|---|---|
| 8 | 01 | M3 | 4-40 |
| 9/10 | 02 | M3 | 4-40 |
| 11/12 | 03 | M3 | 4-40 |
| 13/14 | 04 | M3 | 4-40 |
| 15/16 | 05 | M3 | 4-40 |
| 17/18 | 06 | M3 | 4-40 |
| 19/20 | 07 | M3 | 4-40 |
| 21/22 | 08 | M3 | 4-40 |
| 23/24 | 09 | M3 | 4-40 |
| 25 | 10 | M3 | 4-40 |
| 28 | 11 | M4 | 6-32 |
| 32 | 12 | M4 | 6-32 |
| 36 | 13 | M4 | 6-32 |
Connector selection
The mounting flange range supports square-flange receptacles across MIL-DTL-38999, MIL-DTL-26482, MIL-DTL-5015 and associated VG/JN standards. Match the connector mounting pattern, shell size, thread and screw length to the catalogue dimensions before ordering.
For selection support, send Bourne Aerospace the connector series, shell size, required finish, thread and quantity.
