45° EMI/RFI Shipboard Backshell, Finish W — MIL-DTL-28840

Specifications

Cross-Brand Compatibility

Application

M28840/905WA is the 45° backshell in the MIL-DTL-28840 shipboard accessory range, finished in cadmium olive drab over electroless nickel. MIL-DTL-28840 connectors are the high-shock, high-density naval circulars used below deck: the accessories have to take the same shock and vibration load as the connector and still keep the shield bonded to the shell. The 45° exit is the compromise between a straight backshell that would push the harness into the rack frame and a 90° that would exceed the bend radius in a tight cable tray. Cable range 0.281–0.438 in covers the common screened shipboard bundle diameters; the clamp takes the mechanical load and the shell bond carries the screen. It is bought by DLA Weapons Support as a qualified backshell line item (NSN cited in the solicitation, 2 units per buy — a low-volume, QPL-restricted part rather than a catalogue stock item).