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National Stock Number:
5310-00-401-1967
Federal Supply Class:
5310
National Item Identification Number:
004011967
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:
| AN961-105 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | AN961-10S | 0PXV4 | THE BOEING COMPANY | | NASM961 | 6U503 | LIBERTY FASTENER CO | | AN961-10S | 76301 | THE BOEING COMPANY | | AN961-10S | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 268 OR | | COPPER ALLOY 270 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OR | | QQ-W-321 1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | SILVER OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.193 INCHES MINIMUM AND | | 0.213 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.433 INCHES MINIMUM AND | | 0.458 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.022 INCHES MINIMUM AND | | 0.042 INCHES MAXIMUM | | PRECIOUS MATERIAL | SILVER | | PRECIOUS MATERIAL AND LOCATION | OVER SILVER | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 88044 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN961-10S |
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