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National Stock Number:
5310-01-622-0406
Federal Supply Class:
5310
National Item Identification Number:
016220406
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.
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Manufacturer Information:
| 13556513 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 3.55 MILLIMETERS MINIMUM AND 3.69 MILLIMETERS MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | SHEET OR STRIP IAW ASTM A240/A240M,ANY 300 SERIES,COND A,FINISH 2D OR 2B FOR SHEET,FINISH 2 FOR STRIP ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | OFF-CENTER WASHER | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 8.2 MILLIMETERS NOMINAL | | SPECIAL FEATURES | CENTER HOLE IS OFF-SET;FROM EDGE TO CENTER OF HOLE IS 3.43MM ONE SIDE AND 4.77MM FROM EDGE TO CENTER OF HOLE ON THE OTHER SIDE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | FINISH IAW 79+050000,CODE 2403 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | TEST DATA DOCUMENT | 18876-13556513 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THICKNESS | 0.336 MILLIMETERS MINIMUM AND 0.476 MILLIMETERS MAXIMUM |
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