5310-01-580-2551 WASHER,LOCK Index 5310-01-580-2603 WASHER,FLAT

National Stock Number:
5310-01-580-2578

Federal Supply Class:
5310

National Item Identification Number:
015802578

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:
4G10251 ITEM 00431442NORTHROP GRUMMAN SYSTEMS CORPORATION
4G10459H0831442NORTHROP GRUMMAN SYSTEMS CORPORATION
PL4G10251 ITEM 00431442NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY) WASHER,FLAT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B265 GR 23 OR B348 GR 23 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY UNS R54520 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM


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