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National Stock Number:
5310-00-215-7510
Federal Supply Class:
5310
National Item Identification Number:
002157510
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:
| 177687 | 31633 | ALINABAL HOLDINGS CORPORATION | | 177687 | 33615 | ENJET AERO MANCHESTER LLC | | 177687 | 77445 | RTX CORPORATION | | 177687 | 98500 | AGC ACQUISITION LLC | | 177687 | JA269 | TOKYO JUDOI KOGYO K.K. | | 177687 | S0554 | TOKYO JUDOGI KOGYO CO. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM | | OVERALL DIAMETER | 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5504 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 410 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
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