5310-01-576-7709, WASHER,FLAT

National Stock Number:
5310-01-576-7709

Federal Supply Class:
5310

National Item Identification Number:
015767709

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:

4295994	80212	BAE SYSTEMS LAND & ARMAMENTS L.P.
4295994-7	076M6	AMZ ALABAMA INC.
42959947	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
4295994-7	80212	BAE SYSTEMS LAND & ARMAMENTS L.P.

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
FEATURES PROVIDED	CASEHARDENED
HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.812 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6345 NATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL OR AMS6349 NATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 4130 OVERALL OR STEEL COMP 4140 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCY	WASHER
III SUPPLEMENTARY FEATURES	EXPORT CONTROLLED DATA PER ITAR;EXEMPT FROM DISCLOSURE UNDER EXEMPTIONS 3 AND 4 OF FREEDOM OF INFORMATION ACT
PERIPHERAL SHAPE STYLE	ROUND
PROPRIETARY CHARACTERISTICS	PACS
OVERALL DIAMETER	2.500 INCHES NOMINAL
SPECIAL FEATURES	USE ANY OF THE FOLLOWING MATERIALS-STEEL ALLOY 4130 AMS6345,6348,6350,6528,6346 OR 6370;STEEL ALLOY 4140 AMS 6349,6382,6529 OR 6395;STEEL ALLOY 8630 AMS6280;STEEL ALLOY 8750 AMS 6328;ZINC COAT 0.3MILS THICK MIN SC2 ASTM B633;EMBRITTLEMENT RELIEVE AFTER PLATING ASTM B633
SPECIAL TEST FEATURES	TOLERANCE FOR OVERALL AND CENTERHOLE DIAMETER IS PLUS/MINUS 0.040 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,TYPE VI,SC 2 SPEC NATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	ZINC OVERALL
THICKNESS	0.313 INCHES NOMINAL

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