8140-00-198-4885 CONTAINER,AMMUNITION Index 8140-00-198-4889 BOX,PACKING,AMMUNITION

National Stock Number:
5310-00-198-4887

Federal Supply Class:
5310

National Item Identification Number:
001984887

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:
190460016764GENERAL MOTORS CORP DELCO REMY DIV
19046001LW55BORGWARNER PDS (ANDERSON), L.L.C.
190460024617GENERAL MOTORS CORP
190460061928GENERAL MOTORS CORP AC-DELCO DIV GOVERNMENT ORDER DEPT
190460072582ROLLS-ROYCE SOLUTIONS AMERICA INC
19046007X677GENERAL MOTORS LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING105.0 ROCKWELL M NOMINAL
HOLE DIAMETER0.170 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
OVERALL DIAMETER0.272 INCHES MINIMUM AND 0.277 INCHES MAXIMUM
MATERIALPLASTIC OVERALL
MINIMUM TENSILE STRENGTH9000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.047 INCHES NOMINAL


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