5120-99-198-5826 WRENCH,SPANNER Index 5310-99-198-6084 NUT,PLAIN,HEXAGON

National Stock Number:
5310-99-198-6013

Federal Supply Class:
5310

National Item Identification Number:
991986013

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:
75A325416K0289BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES
75A325416K1987BAE SYSTEMS PLC
75A325416-2007K0289BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES
75A325416-2007K1987BAE SYSTEMS PLC
75A325416-2007U9143BAE SYSTEMS (OPERATIONS) LIMITED


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER5.00 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONBSI BS S524 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.100 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBSI BS S26 GRADE 13 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESSA0.064 SINGLE THROUGH HOLE WITH THREADED INSERT NOMINAL


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