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National Stock Number:
5310-00-188-3744
Federal Supply Class:
5310
National Item Identification Number:
001883744
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:
| 426391 | 77445 | RTX CORPORATION | | 5010325 | 001JK | EMBRAER S.A. DBA EMBRAER | | 5010325 | S4956 | EMBRAER EMPRESA BRASILEIRA DE AERONAUTICA SA | | 5310PL0145268 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 5310PL1446759 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 6711506 | 24617 | GENERAL MOTORS CORP | | 6711506 | 73342 | ALLISON TRANSMISSION INC | | 92265-9 | 59875 | EATON CORP | | 938.75.11.309 | S4080 | PILATUS AIRCRAFT LTD | | AN122581 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | | MS9320-09 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS 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 | | HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.208 INCHES MINIMUM AND 0.223 INCHES MAXIMUM | | OVERALL DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD 1ST TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL | | THICKNESS | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
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