6250-01-509-3874 LAMPHOLDER Index 5305-01-509-3876 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5310-01-509-3875

Federal Supply Class:
5310

National Item Identification Number:
015093875

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:
5793547-131442NORTHROP GRUMMAN SYSTEMS CORPORATION
5793547-153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORGREEN OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER3.000 INCHES NOMINAL
OVERALL DIAMETER7.000 INCHES NOMINAL
MATERIALGLUE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESMADE FROM EPOXY RESIN; HAS 6 HOLES 0.547 INCH IN DIAMETER DRILLED THRU, SEE DRAWING FOR PLACEMENT
SUPPLEMENTARY FEATURESDRAWING CALLS THIS: WASHER,ISOLATION,COMPOSITE, PROP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-DTL-24441/29, FORMULA 150, TY IV MIL SPEC 1ST TREATMENT RESPONSE AND MIL-DTL-24441/32, FORMULA 153, TY IV, USED FOR BLACK MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPRIMER AND PAINT OVERALL
THICKNESS0.063 INCHES NOMINAL


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