5305-01-396-9151 SCREW,CLOSE TOLERANCE Index 5365-01-396-9153 RING,EXTERNALLY THREADED

National Stock Number:
5310-01-396-9152

Federal Supply Class:
5310

National Item Identification Number:
013969152

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:
6691056-30772AELBIT SYSTEMS ELECTRO-OPTICS ELOP LTD
6691056-3S6070ELBIT SYSTEMS ELECTRO-OPTICS ELOP LTD.
66910567-334860NORTHROP GRUMMAN SYSTEMS CORPORATION
6691056-3SC067ELOP ELECTRO OPTICAL INDUSTRIES LTD


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.185 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
OVERALL DIAMETER0.310 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.068 INCHES MINIMUM AND 0.072 INCHES MAXIMUM


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