5998-01-437-7273 CIRCUIT CARD ASSEMBLY Index 5340-01-437-7275 CLAMP,BLOCK

National Stock Number:
5310-01-437-7274

Federal Supply Class:
5310

National Item Identification Number:
014377274

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:
21-10130 ITEM 6S8828MACGREGOR SWEDEN AB
24-062780H7R3MACGREGOR USA INC.
589-6953255 ITEM 6 REV C94421MILITARY SEALIFT COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER41.0 MILLIMETERS NOMINAL
MATERIAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER50.0 MILLIMETERS NOMINAL
THICKNESS4.0 MILLIMETERS NOMINAL


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