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National Stock Number:
5310-00-579-1988
Federal Supply Class:
5310
National Item Identification Number:
005791988
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:
| 10121522 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 10594609-3 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | B4-2 | 00141 | ROLLER BEARING CO OF AMERICA, INC | | DB4D2 | 29964 | ALLIED DEVICES CORP DBA ABSOLUTE PRECISION CO | | 1650407-2 | 56232 | LOCKHEED MARTIN CORPORATION | | 555-00-000000052 | D0078 | DIEHL DEFENCE GMBH & CO. KG | | PR45-34 | 08748 | ELDEC AEROSPACE CORP |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM | | OVERALL DIAMETER | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303SE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM |
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