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National Stock Number:
5310-01-203-2653
Federal Supply Class:
5310
National Item Identification Number:
012032653
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:
| 517702-4 | 31550 | L3HARRIS TECHNOLOGIES, INC. | | A3013124-4 | 51792 | APOLLO AEROSPACE COMPONENTS LLC | | A3013124-4 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | D70342/1-043C | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 4.3 MILLIMETERS NOMINAL | | OVERALL DIAMETER | 9.0 MILLIMETERS NOMINAL | | MATERIAL | STEEL COMP 301 AND STEEL COMP 302 AND STEEL COMP 303 AND STEEL COMP 303SE AND STEEL COMP 304 AND STEEL COMP 304L AND STEEL COMP 305 AND STEEL COMP 308 AND STEEL COMP 309 AND STEEL COMP 309S AND STEEL COMP 310 AND STEEL COMP 310S AND STEEL COMP 314 AND STEEL COMP 316 AND STEEL COMP 316L AND STEEL COMP 317 AND STEEL COMP 321 AND STEEL COMP 347 AND STEEL COMP 348 AND STEEL COMP 384 AND STEEL COMP 385 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.8 MILLIMETERS NOMINAL |
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