5 inch for 72 size
No other part numbers with same form, fit, and function found.
NSN 5835-01-177-1092
NSN 6685-01-569-7986
NSN 6145-00-091-1079
NSN 6645-01-330-6028
NSN 5999-01-453-6960
NSN 6145-01-389-3448
NSN 5895-00-081-2219
NSN 5915-01-056-2215
NSN 5998-01-462-0289
NSN 5835-00-729-9305
NSN 6240-00-553-8891
NSN 6645-00-779-5355