5310-01-210-7447 WASHER,FLAT Index 5310-01-210-7449 WASHER,LOCK

National Stock Number:
5310-01-210-7448

Federal Supply Class:
5310

National Item Identification Number:
012107448

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:
2252-N11606540NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
2252-N1161YGB8CAREY MANUFACTURING CO, INC
922500-00192059KAMAN AEROSPACE CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.116 INCHES MINIMUM AND 0.126 INCHES MAXIMUM
OVERALL DIAMETER0.182 INCHES MINIMUM AND 0.202 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYAMIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM


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