5310-00-001-4750, WASHER,FLAT

National Stock Number:
5310-00-001-4750

Federal Supply Class:
5310

National Item Identification Number:
000014750

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:

10116488	A486G	NIMIKKEISTOKESKUS NCB FINLAND
NAS1587-3L	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.192 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
OVERALL DIAMETER	0.469 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6721 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND QQ-S-763,COND A FED SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 321 OR STEEL COMP 348 OR STEEL COMP 347 OVERALL
MINIMUM TENSILE STRENGTH	75000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	80205-NAS1587 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH	63.0 MICROINCHES BOTTOM
SURFACE FINISH	63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THICKNESS	0.016 INCHES NOMINAL

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