1) Connectors are preferred for use in Level 2 applications. The following is recommended for additional testing for Level 1 applications:
3) Hand soldering of these connectors is recommended. The use of wave soldering or infrared reflow equipment may overheat connectors, resulting in warpage or shifting of contact positions, and may cause high mating force or insufficient contact engagements.
4) For "D" shaped guidepin hardware only, style "Y", a polarization code may be added to the part number. This part number may appear on parts lists for assembly or other documents required for procurement, but is not marked on the part. Polarization code may be 1 through 64 in accordance with the polarization figure shown in the part number/ordering explanation page. Unless otherwise specified, all connectors are supplied in the -1 polarization position, and may be repolarized by using the M55302/57-01 spanner wrench procured separately per MIL-C-55302/57. Hardware shall be secured with low-outgassing adhesive.
5) MIL-DTL-55302/65 and /66 connectors contain crimp removable socket contacts which are supplied with the connectors. Replacement contact part numbers per MIL-DTL-55302/65 are M55302/65-01 for normal insertion force and M55302/65-02 for low insertion force.
6) Other contact termination styles are available. However, the letter designations for these options are not consistent between the detail specifications, and these termination styles are not offered in each detail specification. Consult detail specification and latest MIL-DTL-55302 QPL for availability.
7) For MIL-DTL-55302/57, /59 and /138 hardware options S and H, jackscrew length is 0.135 inches rather than 0.200 inches.
8) Connector materials have good outgassing characteristics.