M42

• 45 mm anti-tank gun M1942 (M-42)
• Ag m/42
• BMW M42
• Dodge M37
• Dodge M42
• Duperite M42 helmet
• Haplogroup B-M42
• M-42 (Michigan highway)
• M/42 (bicycle)
• M1942 (disambiguation)
• M242 Bushmaster
• M42 (Cape Town)
• M42 (New York City bus)
• M42 (Pretoria)
• M42 (gas mask)
• M42 (sub-basement)
• M42 Duster
• M42 United Defense
• M42 lens mount
• M42 motorway
• Mersenne prime
• Messier 42
• Stahlhelm
• Unified numbering system