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National Stock Number:
5310-00-092-1808
Federal Supply Class:
5310
National Item Identification Number:
000921808
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:
| 23145P15 | 00198 | PRATT & WHITNEY CANADA CORP | | 23145P15 | 77445 | RTX CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | BLANK RECTANGULAR | | HARDNESS RATING | 26.0 ROCKWELL C NOMINAL OR 32.0 ROCKWELL C NOMINAL | | HOLE DIAMETER | 0.250 INCHES NOMINAL | | OUTSIDE LEFT CORNER CHAMFER ANGLE | 60.0 DEGREES MINIMUM AND 70.0 DEGREES MAXIMUM | | OVERALL DIAMETER | 0.545 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | OXIDE FILM OVERALL | | THICKNESS | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
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