5310-00-764-1764, WASHER,FLAT

5985-00-764-1763 ISOLATOR,RADIO FREQUENCY REFLECT

National Stock Number:
5310-00-764-1764

Federal Supply Class:
5310

National Item Identification Number:
007641764

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:

MS9320-06	0U583	SAE INTERNATIONAL
MS9320-06	81343	SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS9320-06	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.145 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
OVERALL DIAMETER	0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4130 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SURFACE FINISH	63.0 MICROINCHES BOTTOM
SURFACE FINISH	63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	NICKEL AND CADMIUM OVERALL
THICKNESS	0.038 INCHES MINIMUM AND 0.048 INCHES MAXIMUM

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