Inside diameter 0.375 in.; 0.312 in. Width
No other part numbers with same form, fit, and function found.
NSN 5855-01-488-6571
NSN 5950-01-384-2730
NSN 5915-01-620-9696
NSN 5905-01-196-5759
NSN 5915-01-118-1414
NSN 6130-01-201-9914
NSN 6150-00-249-0071
NSN 5910-00-262-0726
NSN 5985-00-617-6100
NSN 6620-01-556-1695
NSN 5945-00-113-5350
NSN 5925-01-449-1559