NSN 5310-00-209-4012

Part Details | FLAT WASHER

5310-00-209-4012 A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.

Alternate Parts: FFW92A, 3429304, 342930-4, 5310-00-209-4012, 00-209-4012, 5310002094012, 002094012

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-209-401213393 ( WASHER, FLAT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 5310-00-209-4012
Part Number Cage Code Manufacturer
FFW92A81348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
342930-498897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5310-00-209-4012
Characteristic Specifications
HARDNESS RATINGRCB27.0 ROCKWELL C MAXIMUM AND 33.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.378 INCHES MINIMUM AND 0.388 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE ROUND
OVERALL DIAMETER0.8025 INCHES MINIMUM AND 0.8225 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
THICKNESS0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH