5320-00-880-8184 RIVET,BLIND Index 5310-00-880-8186 NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-880-8185

Federal Supply Class:
5310

National Item Identification Number:
008808185

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:
12387305-1119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
S8157A207-015A70210HONEYWELL INTERNATIONAL INC.
S8157A207-015A72599ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
S8157A207-015A99193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/2 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL
OVERALL DIAMETER0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8525 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
THICKNESS0.015 INCHES NOMINAL


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