5305-00-834-1810 SCREW,CAP,HEXAGON HEAD Index 5975-00-834-1819 BRACKET,DUCT

National Stock Number:
5310-00-834-1811

Federal Supply Class:
5310

National Item Identification Number:
008341811

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:
204-20965-1261VPW8GENERAL DYNAMICS MISSION SYSTEMS, INC.
204-20965-12694990MOTOROLA INC. DBA INTEGRATED INFORMATION SYSTEMS GROUP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.250 INCHES MINIMUM AND 0.254 INCHES MAXIMUM
OVERALL DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 CLASS 5 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM


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