5310-01-297-7548 WASHER,FLAT Index 5310-01-297-7550 WASHER,FLAT

National Stock Number:
5310-01-297-7549

Federal Supply Class:
5310

National Item Identification Number:
012977549

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:
5223919-153711NAVAL SEA SYSTEMS COMMAND
5223919-15D286LOCKHEED MARTIN CORP LOCKHEED MARTIN LABORATORIES M/P 24


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.015 INCHES MINIMUM AND 1.028 INCHES MAXIMUM
OVERALL DIAMETER1.475 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESSOLID FILM LUBRICANT,MIL-L-46010
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.125 INCHES NOMINAL


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