Here are some of the most commonly used Mil-Spec capacitor families and brief descriptions.

• MIL-C-25: Fixed Paper Dielectric, DC, Hermetically Sealed in Metal Cases.
• MIL-C-11693: Fixed Paper/Film Dielectric, Feed-Through, Hermetically Sealed in Metal Cases.
• MIL-C-14157: Fixed Paper, PaperPlastic or Plastic Dielectric, DC, Hermetically Sealed in Metal Cases.
• MIL-C-18312: Fixed Metallized Paper, Paper-Plastic or Plastic Film Dielectric, DC, Hermetically Sealed in Metal Cases.
• MIL-C-19978: Fixed Plastic or Paper-Plastic Dielectric, Hermetically Sealed in Metal, Ceramic or Glass Cases.
• MIL-C-27287: Fixed Plastic Dielectric, DC, in Non-Metallic Cases.
• MIL-C-39022: Fixed Metallized Paper-Plastic Film or Plastic Film Dielectric, DC and AC, Hermetically Sealed in Metal Cases.
• MIL-C-55514: Fixed Plastic or Metallized Plastic Dielectric, DC, in Non-Metallic Cases.
• MIL-C-83421: Fixed SuperMetallized Plastic Film Dielectric, DC, AC and AC-DC, Hermetically Sealed in Metal Cases.
• MIL-C-83439: Fixed Feed-Through, EMI suppression, DC, AC and ACDC, Hermetically Sealed in Metal Cases.
• MIL-STD-202: Test methods for electronic and electrical component parts.