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National Stock Number:
5310-00-867-8802
Federal Supply Class:
5310
National Item Identification Number:
008678802
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:
| 13213E3294 | 97403 | CECOM LR CENTER | | ERND212 | 02978 | RENK AMERICA LLC | | ERND212 | 81336 | CHIEF OF ENGINEERS DEPT OF ARMY | | ERND212 | R1120 | SATAIR A/S |
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Techincal Specification:
| MATERIAL | STEEL COMP 1070 OR | | STEEL COMP 1078 OR | | STEEL COMP 1080 OR | | STEEL COMP 1084 OR | | STEEL COMP 1090 OR | | STEEL COMP 1095 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | OXIDE FILM OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.631 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.110 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.036 INCHES NOMINAL | | COLOR | BLACK OVERALL | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND | | 55.0 ROCKWELL C MAXIMUM |
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