National Stock Number: 2590-99-743-4195
  Federal Supply Class: 2590
  National Item Identification Number: 997434195
  Description: CAP,FILLER OPENING
  Detail: A part basically circular in shape, designed to cover or seal the filler-neck or inlet opening of a fuel tank, radiator, oil reservoir, liquid storage tank or the like. It may be either permanently attached to the object for which it is designed or provided with a means of removal and replacement. Excludes CAP, VENT, FUEL STORAGE TANK; and COVER (1), (as modified). 
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