5360-01-377-4472 SPRING,HELICAL,EXTENSION Index 5365-01-377-4474 SPACER,RING

National Stock Number:
5310-01-377-4473

Federal Supply Class:
5310

National Item Identification Number:
013774473

Description:
WASHER,FLAT

Detail:
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.


Manufacturer Information:
5310PL19384429009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
70209-27000-12278286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
MATERIALTITANIUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4900 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.594 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.985 INCHES MINIMUM AND
0.990 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.050 INCHES MINIMUM AND
0.060 INCHES MAXIMUM


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