A bulkhead fitting assembly that includes a tube, a mounting flange attachable to a bulkhead, a thermal shell joining the mounting flange and the tube and having a portion spaced away from the tube forming an air pocket between the tube and the thermal shell, a plurality of mounting studs extending from the mounting flange away from the thermal shell, and a plurality of bushings positioned between the mounting studs and the bulkhead. The plurality of bushings are each shaped to complete a current path from the tube to the plurality of mounting studs, from the plurality of mounting studs to the plurality of bushings, and from the plurality of bushings to the bulkhead. Nuts are threaded on the studs to secure the fitting assembly by sandwiching the bulkhead between the mounting flange and the bushings, which are retained by the nuts.

A bulkhead fitting assembly that includes a tube, a mounting flange attachable to a bulkhead, a thermal shell joining the mounting flange and the tube and having a portion spaced away from the tube forming an air pocket between the tube and the thermal shell, a plurality of mounting studs extending from the mounting flange away from the thermal shell, and a plurality of bushings positioned between the mounting studs and the bulkhead. The plurality of bushings are each shaped to complete a current path from the tube to the plurality of mounting studs, from the plurality of mounting studs to the plurality of bushings, and from the plurality of bushings to the bulkhead. Nuts are threaded on the studs to secure the fitting assembly by sandwiching the bulkhead between the mounting flange and the bushings, which are retained by the nuts.

A method of sealing an opening in a bulkhead with a fitting assembly having a tube, a mounting flange, a thermal shell, an adapter, a bushing, and a jam nut may include inserting the tube through the opening; placing the mounting flange against the bulkhead, the mounting flange attached to the thermal shell, the thermal shell attached to the tube, and the mounting flange attached to the adapter so that the adapter extends away from the mounting flange and from the thermal shell through the opening; forming an air pocket by spacing a portion of the thermal shell away from the tube; placing the bushing on the adapter; and tightening the jam nut on the adapter to sandwich the bulkhead between the mounting flange and the bushing to form a seal between the mounting flange and the bushing to seal the opening.

A method of sealing an opening in a bulkhead with a fitting assembly having a tube, a mounting flange, a thermal shell, an adapter, a bushing, and a jam nut may include inserting the tube through the opening; placing the mounting flange against the bulkhead, the mounting flange attached to the thermal shell, the thermal shell attached to the tube, and the mounting flange attached to the adapter so that the adapter extends away from the mounting flange and from the thermal shell through the opening; forming an air pocket by spacing a portion of the thermal shell away from the tube; placing the bushing on the adapter; and tightening the jam nut on the adapter to sandwich the bulkhead between the mounting flange and the bushing to form a seal between the mounting flange and the bushing to seal the opening.

A cable/line insertion is used to insert and thread at least one line into and through a wall opening into a housing wall. The insertion comprises an insertion sleeve for inserting into the wall opening, a pressing flange which projects substantially radially outwards from same, in places, and a clamping part which in particular can be screwed in the direction of the pressing flange onto the insertion sleeve, and a fastening section of the insertion sleeve, which is arranged opposite the clamping part. The fastening section comprises a contact surface which projects at least in places substantially radially outwards, which contact surface can be engaged from behind by a plug part for pressing the pressing flange to an opening edge of the wall opening.

A cable connecting assembly includes a tubular member, a securing member, a seal unit, and a hollow barrel member that defines an accommodating space. The tubular member is disposed in the accommodating space and has two annular grooves. The securing member has a coupling portion abutting against the tubular member and threadedly engaging the barrel member, and an abutment portion abutting against the barrel member. The seal unit includes two first seal rings respectively disposed in the annular grooves and sealingly contacting an inner surface of the barrel member, and a second seal ring sleeved on the coupling portion of the securing member and sealingly contacting the inner surface of the barrel member and the abutment portion of the securing member.

A cable connecting assembly includes a tubular member, a securing member, a seal unit, and a hollow barrel member that defines an accommodating space. The tubular member is disposed in the accommodating space and has two annular grooves. The securing member has a coupling portion abutting against the tubular member and threadedly engaging the barrel member, and an abutment portion abutting against the barrel member. The seal unit includes two first seal rings respectively disposed in the annular grooves and sealingly contacting an inner surface of the barrel member, and a second seal ring sleeved on the coupling portion of the securing member and sealingly contacting the inner surface of the barrel member and the abutment portion of the securing member.

Grommets for supporting harnesses and systems and methods including the same are disclosed herein. The grommets include a grommet body, a resilient cushion, and a retention mechanism. The grommet body is configured to be received within an aperture that is defined by a structural component and defines a tubular receiving region that is sized to receive the harness. The resilient cushion is located within the tubular receiving region and is configured to extend between the harness and the grommet body. The retention mechanism is configured to selectively retain the grommet body within the aperture. The methods include locating the resilient cushion around an external surface of the harness, locating a first body portion and a second body portion around an external surface of the resilient cushion, and operatively interlocking the first body portion with the second body portion to form the grommet body.

A method of making a bulkhead fitting assembly may include joining a tube to a thermal shell of a mounting flange, the mounting flange shaped to be attached to a bulkhead and including an adapter; forming the thermal shell to have a portion spaced away from the tube to form an air pocket between the tube and the thermal shell adjacent the mounting flange; and placing a bushing on the adapter such that the bushing completes a current path from the tube to the adapter, from the adapter to the bushing, and from the bushing to the bulkhead.

A method of making a bulkhead fitting assembly may include joining a tube to a thermal shell of a mounting flange, the mounting flange shaped to be attached to a bulkhead and including an adapter; forming the thermal shell to have a portion spaced away from the tube to form an air pocket between the tube and the thermal shell adjacent the mounting flange; and placing a bushing on the adapter such that the bushing completes a current path from the tube to the adapter, from the adapter to the bushing, and from the bushing to the bulkhead.