1280-00-950-9989 COUNTER,TRACKING Index 3020-00-950-9993 PULLEY,GROOVE

National Stock Number:
5310-00-950-9990

Federal Supply Class:
5310

National Item Identification Number:
009509990

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:
306-007-100195542NORTHROP GRUMMAN SYSTEMS CORPORATION
905274-205257GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION
950139-2306481NORTHROP GRUMMAN SYSTEMS CORPORATION
989C639H1618323NORTHROP GRUMMAN SYSTEMS CORPORATION
930115-1680249BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
LWNY-016NA85480BRADY UNITED STATES
NW10-437285480BRADY UNITED STATES


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.195 INCHES NOMINAL
OVERALL DIAMETER0.437 INCHES NOMINAL
MATERIALPLASTIC POLYAMIDE (NYLON) OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.020 INCHES NOMINAL


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