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National Stock Number:
5310-00-840-2127
Federal Supply Class:
5310
National Item Identification Number:
008402127
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:
| 10121754 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 58A164B92 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.578 INCHES MINIMUM AND 0.588 INCHES MAXIMUM | | OVERALL DIAMETER | 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6721 MIL SPEC 1ST MATERIAL RESPONSE AND AISI ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-5059 MIL SPEC 4TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 347 OR STEEL COMP 304L OR STEEL COMP 302 OR STEEL COMP 304 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
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