5310-00-491-5895, WASHER,FLAT

5305-00-491-5897 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5310-00-491-5895

Federal Supply Class:
5310

National Item Identification Number:
004915895

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:

80-331	97153	GOODRICH CORPORATION
FFW92	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS16212-15	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
HOLE DIAMETER	0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM
OVERALL DIAMETER	1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-766 FINISH NO. 2 FED SPEC 1ST MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OVERALL
MINIMUM TENSILE STRENGTH	50000 POUNDS PER SQUARE INCH
NONDEFINITIVE SPEC/STD DATA	A TYPE AND 1 GRADE AND B CLASS
PERIPHERAL SHAPE STYLE	ROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
TEST DATA DOCUMENT	81349-MIL-I-17214 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
THICKNESS	0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM

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