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National Stock Number:
5310-00-245-8802
Federal Supply Class:
5310
National Item Identification Number:
002458802
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:
| AN961-6 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | AN961-6S | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | FF-W-92 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | AN961-6S | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 270 OR | | COPPER ALLOY 268 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR | | QQ-B-626 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | SILVER OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-S-365 TYPE A/A GRADE B FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.139 INCHES MINIMUM AND | | 0.159 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.370 INCHES MINIMUM AND | | 0.395 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.022 INCHES MINIMUM AND | | 0.042 INCHES MAXIMUM | | PRECIOUS MATERIAL | SILVER | | PRECIOUS MATERIAL AND LOCATION | OVERALL SILVER | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-W-92 |
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