5310-00-137-8038 WASHER,FLAT Index 5955-00-137-8040 CRYSTAL UNIT,QUARTZ

National Stock Number:
5310-00-137-8039

Federal Supply Class:
5310

National Item Identification Number:
001378039

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:
732037-473030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING37.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
HEAT TREATMENTAS FABRICATED
HOLE DIAMETER0.6246 INCHES MINIMUM AND 0.6259 INCHES MAXIMUM
OVERALL DIAMETER1.060 INCHES MINIMUM AND 1.090 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONHS178,FSCM 73030 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
TEST DATA DOCUMENT73030-HS447 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THICKNESS0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM


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