NSN 5310-00-349-9250

Part Details | FLAT WASHER

5310-00-349-9250 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: 643520179102, 6435-20179-102, 5310-00-349-9250, 00-349-9250, 5310003499250, 003499250

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 05, 197100-349-925013393 ( WASHER, FLAT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND

Cross Reference | NSN 5310-00-349-9250
Part Number Cage Code Manufacturer
6435-20179-10278286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
Technical Data | NSN 5310-00-349-9250
Characteristic Specifications
HARDNESS RATINGRCB34.0 ROCKWELL C MAXIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE ROUND
OVERALL DIAMETER1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
THICKNESS0.177 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH