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National Stock Number:
5310-01-004-9010
Federal Supply Class:
5310
National Item Identification Number:
010049010
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:
| 10941915 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE | | 10941915-5 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM | | OVERALL DIAMETER | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OR ASTM A505 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A505 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A505 ASSN STD 3RD MATERIAL RESPONSE OR QQ-S-626 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-626 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.127 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
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