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National Stock Number:
5310-01-520-5732
Federal Supply Class:
5310
National Item Identification Number:
015205732
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:
| 10317580 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | ST4M146-6V | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CRITICALITY CODE JUSTIFICATION | AGAV | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.224 INCHES MINIMUM AND 0.234 INCHES MAXIMUM | | OVERALL DIAMETER | 0.315 INCHES MINIMUM AND 0.330 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-9046,TYPE III,COMPOSITION C,CONDITION ANNEALED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | THESE WASHERS ARE TO BE USED WITH PIN AND COLLAR FASTNERS AND BLIND BOLTS WHERE STRUCTURE CANNOT BE CHAMFERED TO ACCEPT HEAD TO SHANK FILLETS.APPLICABLE PROCESS SPECS WILL AUTHORIZE THEIR USE | | THICKNESS | 0.020 INCHES NOMINAL |
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