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		                        | National Stock Number:
 5310-00-209-1241
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 002091241
 
 Description:
 WASHER,LOCK
 
 Detail:
 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
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 Manufacturer Information:
 
 | 4818-16-01 | 78189 | ITW SHAKEPROOF AUTOMOTIVE PRODUCTS | 
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 Techincal Specification:
 
 | MATERIAL | STEEL OVERALL |  | SURFACE TREATMENT | CADMIUM OR |  |  | ZINC OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 1 FED SPEC 1ST TREATMENT RESPONSE OR |  |  | QQ-Z-325,TY 2,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |  | STYLE DESIGNATOR | DOME EXTERNAL AND INTERNAL TEETH |  | HOLE DIAMETER | 0.320 INCHES MINIMUM AND |  |  | 0.332 INCHES MAXIMUM |  | OUTSIDE DIAMETER | 0.980 INCHES MINIMUM AND |  |  | 1.010 INCHES MAXIMUM |  | OVERALL HEIGHT | 0.105 INCHES NOMINAL |  | MATERIAL THICKNESS | 0.040 INCHES NOMINAL | 
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