Coolant System Couplings. 3 part numbers in this category

Part Number
NSN
NIIN
581R401H01
581R401H01
4730-00-578-6237
005786237
Used on acft model no. f4.
581R401H02
581R401H02
4730-00-580-9313
005809313
Used on acft model no. f4.
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