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National Stock Number:
5310-01-465-3725
Federal Supply Class:
5310
National Item Identification Number:
014653725
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:
| HS306-519L | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | HS306-519L | 10630 | ANILLO INDUSTRIES LLC | | HS306-519L | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC | | HS306-519L | 5H383 | PAC ZONAMATIC INC | | HS306-519L | 86928 | SEASTROM MANUFACTURING CO INC | | HS306-519L | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | NATURAL OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 98.0 ROCKWELL M MINIMUM AND 113.0 ROCKWELL M MAXIMUM | | HOLE DIAMETER | 0.169 INCHES MINIMUM AND 0.180 INCHES MAXIMUM | | OVERALL DIAMETER | 0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | L-P-513,TYPE PBE-P MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC PHENOLIC OVERALL | | MINIMUM TENSILE STRENGTH | 8850 POUNDS PER SQUARE INCH | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | FITS NO. 8 SCREW; CONSTRUCTED WITH SUITABLE PAPER BASE OR FILLER IMPREGNATED AND BONDED (LAMINATED) WITH THERMOSETTING PHENOLIC RESIN COMPOUND OR BINDER | | THICKNESS | 0.016 INCHES NOMINAL |
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