5310-01-171-1447 NUT,SELF-LOCKING,KNURLED Index 5310-01-171-1450 WASHER,SPRING TENSION

National Stock Number:
5310-01-171-1449

Federal Supply Class:
5310

National Item Identification Number:
011711449

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:
10-10247759501UNISON INDUSTRIES LLC
10-10247777820AMPHENOL CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
HOLE DIAMETER0.451 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
OUTSIDE LEFT CORNER CHAMFER ANGLE30.0 DEGREES NOMINAL
OVERALL DIAMETER0.766 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION9-3163,FSCM 77820 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SILICONE CLASS Q OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.188 INCHES NOMINAL


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