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National Stock Number:
5310-01-292-5352
Federal Supply Class:
5310
National Item Identification Number:
012925352
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:
| U-AX0003-1 | 74841 | FRUEHAUF CORP FRUEHAUF TRAILER OPNS | | UXA0003-1 | 74841 | FRUEHAUF CORP FRUEHAUF TRAILER OPNS |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 1.050 INCHES MINIMUM AND 1.070 INCHES MAXIMUM | | OVERALL DIAMETER | 3.970 INCHES MINIMUM AND 4.030 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A570 ASSN STD 1ST MATERIAL RESPONSE OR SAE ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OR STEEL COMP 1020 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.227 INCHES MINIMUM AND 0.247 INCHES MAXIMUM |
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