5305-00-045-8280 SETSCREW Index 4310-00-045-8290 VACUUM PUMP UNIT,RECIPROCATING

National Stock Number:
5310-00-045-8283

Federal Supply Class:
5310

National Item Identification Number:
000458283

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:
038051-06189305SIMMONDS PRECISION PRODUCTS INC
4300001-1519133MCDONNELL DOUGLAS CORP MCDONNELL DOUGLAS AEROSPACE OPNS WEST
B8-1700141ROLLER BEARING CO OF AMERICA, INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING75.0 ROCKWELL B MINIMUM AND 83.0 ROCKWELL B MAXIMUM
HOLE DIAMETER0.094 INCHES NOMINAL
OVERALL DIAMETER0.164 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.006 INCHES NOMINAL


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