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National Stock Number:
5310-01-309-8377
Federal Supply Class:
5310
National Item Identification Number:
013098377
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:
| 8988538-01 | 98748 | AIR FORCE UNITED STATES DEPARTMENT OF THE DBA TINKER AFB OC ALC DSP |
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Techincal Specification:
| MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-C-50709,TYPE I,GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.630 INCHES MINIMUM AND | | 0.640 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.750 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.063 INCHES NOMINAL | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | SPECIAL FEATURES | USED ON MECHANISM ASSY 1560-00- 056-6162FL C KC-135 TO 16C-1-2-8-13 FIG 9-1,INDEX 39 |
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