5310-00-184-8978 WASHER,LOCK Index 5310-00-184-8980 WASHER,FLAT

National Stock Number:
5310-00-184-8979

Federal Supply Class:
5310

National Item Identification Number:
001848979

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:
5310PL07153819009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
AN960D616L88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
G169-616T26512NORTHROP GRUMMAN SYSTEMS CORPORATION
NAS1149D0616H80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1149D0616HA0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE
NAS70AL390-62580205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.390 INCHES NOMINAL
OVERALL DIAMETER0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 T3,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM


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