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National Stock Number:
5310-00-227-9065
Federal Supply Class:
5310
National Item Identification Number:
002279065
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:
| 03-63560 | 43021 | NVF CO INC | | 63560 | 43021 | NVF CO INC | | SCD12519DITEM4 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 88.0 ROCKWELL M MINIMUM AND 117.0 ROCKWELL M MAXIMUM | | HOLE DIAMETER | 0.391 INCHES NOMINAL | | OVERALL DIAMETER | 1.500 INCHES NOMINAL | | MATERIAL | PLASTIC OVERALL | | MINIMUM TENSILE STRENGTH | 7210 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | 30 DEG CHAMFER ON TOP SIDE AROUND OD,45 DEG BY 0.062 IN. CHAMFER ON TOP SIDE AROUND ID,FOUR GROOVES 0.062 IN. BY 0.062 IN. 90 DEG APART ON BOTTOM | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.250 INCHES NOMINAL |
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