NSN 5310-00-493-4021

Part Details | FINISHING WASHER

5310-00-493-4021 A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.

Alternate Parts: 12K4157, 12K415-7, 5310-00-493-4021, 00-493-4021, 5310004934021, 004934021

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 20, 197000-493-402115932 ( WASHER, FINISHING )
REFERENCE DRAWINGS & PICTURES

SPRING TENSION

Cross Reference | NSN 5310-00-493-4021
Part Number Cage Code Manufacturer
12K415-781755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5310-00-493-4021
Characteristic Specifications
STYLE DESIGNATOR7 SPRING TENSION
HOLE DIAMETER0.214 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
OUTSIDE DIAMETER0.532 INCHES MINIMUM AND 0.592 INCHES MAXIMUM
RECESS DIAMETER0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
MATERIAL THICKNESS0.016 INCHES NOMINAL
RECESS ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM