1 end external straight thread; other end straight tube with o-ring groove; wrench flats on center cylindrical section
No other part numbers with same form, fit, and function found.
NSN 6110-01-537-6669
NSN 6650-00-140-0198
NSN 6240-00-244-0483
NSN 5935-00-959-6853
NSN 5996-00-761-6511
NSN 5935-00-904-3131
NSN 5855-01-503-3452
NSN 5920-01-393-4172
NSN 6320-01-624-0193
NSN 5998-01-014-6371
NSN 7035-01-044-0136
NSN 4140-00-715-0010