41 CFR 102-33.115 - Are there special requirements for acquiring military Flight Safety Critical Aircraft Parts (FSCAP)?
Yes, when you acquire military Flight Safety Critical Aircraft Parts (FSCAP), you must -
(a) Accept FSCAP only when it is documented or traceable to its original equipment manufacturer. A part's DOD FSCAP Criticality Code should be marked or tagged on the part or appear on its invoice/transfer document (see § 102-33.375 for further explanation of the FSCAP Criticality Codes); and
(b) Not install undocumented, but traceable FSCAP until you have the parts inspected and recertified by the original equipment manufacturer or other FAA-approved facility (see § 102-33.370 on FSCAP and AC 20-142).