5310-01-128-4119 WASHER,FLAT Index 5310-01-128-4121 WASHER,FLAT

National Stock Number:
5310-01-128-4120

Federal Supply Class:
5310

National Item Identification Number:
011284120

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:
10109482A486GNIMIKKEISTOKESKUS NCB FINLAND
9853M81P2802653BERKSHIRE MANUFACTURED PRODUCTS, INC.
9853M81P2807482GENERAL ELECTRIC COMPANY
9853M81P281P230SPECIALTY WASHER CO OF SOUTH CAROLINA INC
9853M81P282T918ALCO MACHINE CO INC
9853M81P2832543WHITCRAFT LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
OVERALL DIAMETER0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM


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