NSN 5310-00-521-3781

Part Details | LOCK WASHER

5310-00-521-3781 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

Alternate Parts: S12151003, S12-15-1003, 5310UH190293, 5310-UH19-029-3, 5310-00-521-3781, 00-521-3781, 5310005213781, 005213781

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-521-378114218 ( WASHER, LOCK )
REFERENCE DRAWINGS & PICTURES

FLAT EXTERNAL AND INTERNAL TEETH

Cross Reference | NSN 5310-00-521-3781
Part Number Cage Code Manufacturer
S12-15-100378286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
5310-UH19-029-381996U S ARMY AVIATION AND MISSILECOMMAND
Technical Data | NSN 5310-00-521-3781
Characteristic Specifications
STYLE DESIGNATOR FLAT EXTERNAL AND INTERNAL TEETH
HOLE DIAMETER1.137 INCHES MINIMUM AND 1.143 INCHES MAXIMUM
OUTSIDE DIAMETER2.125 INCHES NOMINAL
MATERIAL THICKNESS0.050 INCHES NOMINAL
HEAT TREATMENT ANNEALED