5310-01-330-8512 WASHER,FLAT Index 5310-01-330-8514 WASHER,FLAT

National Stock Number:
5310-01-330-8513

Federal Supply Class:
5310

National Item Identification Number:
013308513

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:
03A257-51W025NORTHROP GRUMMAN SYSTEMS CORP
03A257-576828NORTHWEST INSTRUMENT CO
AS19879-510630ANILLO INDUSTRIES LLC
MM118-558009MOELLER MANUFACTURING & SUPPLY, LLC
NS202860-580539SPS TECHNOLOGIES, LLC
VN948-592215HOWMET GLOBAL FASTENING SYSTEMS INC
VN948NP592215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.314 INCHES MINIMUM AND
0.318 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.575 INCHES MINIMUM AND
0.585 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.057 INCHES MINIMUM AND
0.069 INCHES MAXIMUM


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