5306-00-118-6202 BOLT,SHOULDER Index 3110-00-118-6204 BEARING,BALL,AIRFRAME

National Stock Number:
5310-00-118-6203

Federal Supply Class:
5310

National Item Identification Number:
001186203

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:
SP13CK4975UFC AEROSPACE EUROPE LIMITED
SP13CK7766BRITISH STANDARDS INSTITUTION
SP13CU1604MARTIN-BAKER AIRCRAFT COMPANY LIMITED
SP13CU1841IRL THERMAL SYSTEMS LTD


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTCOLD ROLLED
HOLE DIAMETER0.197 INCHES MINIMUM AND 0.202 INCHES MAXIMUM
OVERALL DIAMETER0.386 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONS510,BSI MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.048 INCHES NOMINAL


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