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National Stock Number:
5310-01-259-0296
Federal Supply Class:
5310
National Item Identification Number:
012590296
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:
| 03526 8 | K7837 | ANIXTER LIMITED | | 87024A0463 | 80372 | MARINE CORPS | | FF-W-92 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | MS51412-6 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | STEEL COMP 1008 OR | | STEEL COMP 1010 OR | | STEEL COMP 1015 OR | | STEEL COMP 1016 OR | | STEEL COMP 1017 OR | | STEEL COMP 1018 OR | | STEEL COMP 1019 OR | | STEEL COMP 1020 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | ZINC AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.370 INCHES MINIMUM AND | | 0.390 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.868 INCHES MINIMUM AND | | 0.905 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.064 INCHES MINIMUM AND | | 0.104 INCHES MAXIMUM | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM | | NONDEFINITIVE SPEC/STD DATA | A TYPE AND | | 1 GRADE AND | | A CLASS | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81348 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-W-92 | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51412-6 |
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