The MTK Cylindrical "PI" RFI/EMI Filter current is 3 Amps 100 VDC 60 DB MIN @ 0.15 MHZ 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
Dia:   1.13
Length:  2.38
A:  .44
B:  .25
C:  .25
Thread:  7/16-20
Flats:  .370
Terminal Hole Size:  .06 X .13 Slot
Terminal Thread Size: