A standoff, internally and/or externally, threaded on both ends with a hinge or pivot point to allow for independent movement of the ends.
NSN 5945-01-177-6343
NSN 4140-00-555-3856
NSN 6685-01-487-7421
NSN 5910-01-239-3997
NSN 5960-00-106-7247
NSN 5998-01-562-8031
NSN 6685-01-355-2366
NSN 6220-01-435-0198
NSN 5895-01-205-8963
NSN 6105-01-100-6473
NSN 6620-01-292-2815
NSN 5905-01-215-7267