5310-01-567-3354, WASHER,FLAT

National Stock Number:
5310-01-567-3354

Federal Supply Class:
5310

National Item Identification Number:
015673354

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:

87016608	10988	CNH INDUSTRIAL AMERICA LLC
87028359	10988	CNH INDUSTRIAL AMERICA LLC
STPF520	10988	CNH INDUSTRIAL AMERICA LLC

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	25.8 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	10988 CASE MS 353 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	HARDENED STEEL FLAT WASHER
III SUPPLEMENTARY FEATURES	MATERIAL IS HARDENED STEEL 1040 TO 1065 PER CASE MS 353 THROUGH HARDEN AND TEMPERED PER CASE SPEC P-7 TO 36-42 HRC
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	44.5 MILLIMETERS NOMINAL
SPECIFICATION/STANDARD DATA	10998 STPA020 MANUFACTURERS SPECIFICATION AND ISO 887 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND ISO 7415 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND ISO 4759/3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	10988 CASE SPEC P-7 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL
THICKNESS	5.0 MILLIMETERS NOMINAL

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