Technics Abbreviations and Acronyms

  1. MOD
    Ministryrof Defence [U.k. and Others]
  2. MOP
    Measurement Over Pins
  3. NORM
    Normalized
  4. NPS
    Navdl Primary Standard[3]
  5. NSCM
    National Stock/Supply Code for Manufacturers
  6. OC
    On Center(S)
  7. ODA
    Original Design Activicy
  8. RA
    Roughness, Average
  9. RB
    Rockwell B Scale
  10. RHR
    Roughness Height Reading
  11. RTV
    Roughness, Mean Depth
  12. SHSS
    Socket Head Set Sccew
  13. SPEC
    Spheroidize Anneal
  14. TAP
    Tapped Hole
  15. TB
    Tapped Hole
  16. TOL
    Tolerance, Tolerancing
  17. TSC
    Theoretical Sharp Corner(S)
  18. UAI
    Use As-Is
  19. ULL
    Under Low Limit
  20. UNJC
    Unified National "J" Series Coarse

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