5310-01-618-5435, WASHER,FLAT

National Stock Number:
5310-01-618-5435

Federal Supply Class:
5310

National Item Identification Number:
016185435

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:

S8157N237-020	2N935	BOEING DISTRIBUTION SERVICES X, INC.
S8157N237-020	70210	HONEYWELL INTERNATIONAL INC.

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
OVERALL DIAMETER	0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6721,MIL-S-5059 OR MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 321 OR STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 316 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER,SPECIAL MISCELLANEOUS MATERIAL
PERIPHERAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	70210-S8157 MANUFACTURERS SPECIFICATION
SURFACE FINISH	125.0 MICROINCHES ALL SURFACES
THICKNESS	0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM

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