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National Stock Number:
5310-00-488-9272
Federal Supply Class:
5310
National Item Identification Number:
004889272
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:
| 3017112 | 00198 | PRATT & WHITNEY CANADA CORP |
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Techincal Specification:
| MATERIAL | STEEL COMP E52100 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6440 MFR REF 1ST MATERIAL RESPONSE OR | | AMS 6441 MFR REF 2ND MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 1.180 INCHES MINIMUM AND | | 1.200 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.8740 INCHES MINIMUM AND | | 1.8745 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.149 INCHES MINIMUM AND | | 0.151 INCHES MAXIMUM | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM | | SPECIAL FEATURES | 0.030 IN. MIN,0.040 IN. MAX BY 40 DEG MIN,50 DEG MAX CHAMFERD LEFT AND RIGHT SIDE OF BEARING SURFACES | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 00198 | | DESIGN CONTROL REFERENCE | 3017112 |
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