The MTK Cylindrical "PI" RFI/EMI military style filter current is 55 Amps 125 VAC 0-400 Hz 400 VDC and, is:
 
Designed, manufactured an tested to the applicable portions of MIL-F-157333.
Filter hermetically sealed.
Case: Metal, suitably plated to withstand corrosion.
 
Dimensions
Style:  FL24
Military equivalent: M15733/2-0006
Dia:   2.250
Length:  4.125
A:  .500
B:  .81
C:  .81
Thread:  1 1/8-18
Flats:  1.055
Terminal Type & Size:  
Terminal Thread Size: 3M-1/4-28