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National Stock Number:
5310-01-618-6341
Federal Supply Class:
5310
National Item Identification Number:
016186341
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:
| 03311M1320 | 02591 | NAVAL AIR WARFARE CTR AIRCRAFT DIV | | 03311M1320-101 | 02591 | NAVAL AIR WARFARE CTR AIRCRAFT DIV | | 75A325991-2001 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.188 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,PROFILED;WASHER FRAME 29 | | PERIPHERAL SHAPE STYLE | SQUARE | | SPECIAL FEATURES | WASHER IS TAPERED FROM .04INCHES THICK AT THE TOP TO .064INCHES THICK AT THE BOTTOM;PROFILE SHAPE IS A TAPERED RECTANGLE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-PRF-23377,TY I,CL C2 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541,CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | | | WIDTH ACROSS FLATS | 0.50 INCHES NOMINAL |
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