5310-01-042-2385 WASHER,FLAT Index 5310-01-042-2387 WASHER,FLAT

National Stock Number:
5310-01-042-2386

Federal Supply Class:
5310

National Item Identification Number:
010422386

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:
GW10U71AA3426512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM
OVERALL DIAMETER1.177 INCHES MINIMUM AND 1.197 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/3 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/4 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2014 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TY 2 CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 CL 1A MIL SPEC 2ND TREATMENT RESPONSE AND MIL-P-23377 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OR CHROMATE AND PRIMER OVERALL
THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM


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