NSN 5310-00-579-3431 FFW92TYPEAGRADE1CLASSA, FFW92TYPEAGRADE1CLASSAMEDIUM, 00-579-3431
Product Details | FLAT WASHER
5310-00-579-3431 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.
Part Alternates: FFW92TYPEAGRADE1CLASSA, FFW92TYPEAGRADE1CLASSAMEDIUM, 5310-00-579-3431, 00-579-3431, 5310005793431, 005793431
Hardware and Abrasives | Nuts and Washers
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 01 JAN 1963 | 00-579-3431 | 13393 ( WASHER, FLAT ) |
Drawings & Photos | NSN 5310-00-579-3431
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Technical Data | NSN 5310-00-579-3431
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| HOLE DIAMETER | 1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM |
| PERIPHERAL SHAPE STYLE | 1 ROUND |
| OVERALL DIAMETER | 3.250 INCHES NOMINAL |
| CENTER HOLE SHAPE STYLE | 1 ROUND |
| CROSS-SECTIONAL SHAPE STYLE | 1 RECTANGULAR |
| THICKNESS | 0.153 INCHES MINIMUM AND 0.213 INCHES MAXIMUM |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFW92TYPEAGRADE1CLASSA |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFW92TYPEAGRADE1CLASSAMEDIUM |
Restrictions/Controls & Freight Information | NSN 5310-00-579-3431
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||