Part Number: 1903-00-00

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CONDITION:
NS
ITW SHAKEPROOF AUTOMOTIVE PRODUCTS78189
AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE88044
HOLE DIAMETER0.102 INCHES MINIMUM AND 0.109 INCHES MAXIMUM
OUTSIDE DIAMETER0.215 INCHES MINIMUM AND 0.232 INCHES MAXIMUM
MATERIAL THICKNESS0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
SURFACE TREATMENTTIN OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces