Related Clues:

• Measurement standard
• Military team
• Indivisible unit
• Number before liftoff
• Component piece
• Word before 'ignition ... liftoff!'
• Prime number factor
• Night stand leader?
• Easy multiplier
• Sailor's knot, for one
• 1
• It equals itself cubed
• The ''U'' of BTU
• Discrete part
• Top 10 U2 hit of 1992