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National Stock Number:
5310-01-225-3588
Federal Supply Class:
5310
National Item Identification Number:
012253588
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:
| 517708-3 | 31550 | L3HARRIS TECHNOLOGIES, INC. | | A3013129-3 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | | A3013129-3 | 8U495 | SPECIAL-T-METALS CO INC |
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Techincal Specification:
| MATERIAL | STEEL COMP 301 OR | | STEEL COMP 302 OR | | STEEL COMP 302B OR | | STEEL COMP 303 OR | | STEEL COMP 303SE OR | | STEEL COMP 304 OR | | STEEL COMP 304L OR | | STEEL COMP 305 OR | | STEEL COMP 308 OR | | STEEL COMP 309 OR | | STEEL COMP 309S OR | | STEEL COMP 310 OR | | STEEL COMP 310S OR | | STEEL COMP 314 OR | | STEEL COMP 316 OR | | STEEL COMP 316L OR | | STEEL COMP 317 OR | | STEEL COMP 321 OR | | STEEL COMP 347 OR | | STEEL COMP 348 OR | | STEEL COMP 384 OR | | STEEL COMP 385 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 3.2 MILLIMETERS NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 7.0 MILLIMETERS NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.5 MILLIMETERS NOMINAL | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
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