5305-00-993-8688 SETSCREW Index 5320-00-993-8704 RIVET,BLIND

National Stock Number:
5310-00-993-8703

Federal Supply Class:
5310

National Item Identification Number:
009938703

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:
MS9549-080U583SAE INTERNATIONAL
MS9549-0881343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS9549-0896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS9549-08A0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.179 INCHES MINIMUM AND 0.194 INCHES MAXIMUM
OVERALL DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM


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