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National Stock Number:
5310-01-308-9116
Federal Supply Class:
5310
National Item Identification Number:
013089116
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:
| 212783-14 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | MS51496-75 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | STEEL COMP 302 OR | | STEEL COMP 304 OR | | STEEL COMP 305 OR | | STEEL COMP 316 OR | | STEEL COMP 321 OR | | STEEL COMP 347 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.260 INCHES MINIMUM AND | | 0.270 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.450 INCHES MINIMUM AND | | 0.460 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.029 INCHES MINIMUM AND | | 0.032 INCHES MAXIMUM | | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51496-75 |
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