Cage 1emk1, type f, zf marine; 15351 sw 29th street ste 300; miramar fl 33027; ph 954-441-4040 states they are oem
No other part numbers with same form, fit, and function found.
A straight one-piece metallic pipe 12 inches(304 mm)or less in length having external threads of the same size on both ends. It may have a center section which is externally shaped to accommodate a wrench. For pipe having internal threads 12 inches(304 mm)or less in length see coupling,pipe. For pipe in excess of 12 inches(304 mm)see pipe as modified.
NSN 6110-01-274-1610
NSN 5895-00-724-5347
NSN 6130-01-420-5519
NSN 6150-01-148-6462
NSN 5999-00-603-3174
NSN 5905-01-602-8750
NSN 5935-00-677-4444
NSN 5975-00-171-1344
NSN 6130-00-952-6029
NSN 5895-00-342-9581
NSN 5998-01-531-7178
NSN 5925-00-546-3258