Overseas metric 203.2mm x 203.2mm x 152.4mm
No other part numbers with same form, fit, and function found.
A fitting in the form of the letter y with each branch usually fixed at 45 degrees (0.78539 radians) to the run. It has identical flanged ends.
NSN 5920-01-601-6271
NSN 5999-01-548-4034
NSN 6105-00-019-1181
NSN 5920-00-054-0172
NSN 5985-01-027-5450
NSN 7035-00-064-7008
NSN 5999-00-388-9449
NSN 6130-01-392-8973
NSN 6240-01-373-7624
NSN 7035-00-335-7283
NSN 5999-01-423-9396
NSN 6645-01-076-4655