NSN 5310-00-037-4381 00-037-4381, 000374381
Product Details | FLAT WASHER
5310-00-037-4381 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: 5310-00-037-4381, 00-037-4381, 5310000374381, 000374381
Hardware and Abrasives | Nuts and Washers
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 00-037-4381 | 13393 ( WASHER, FLAT ) |
Drawings & Photos | NSN 5310-00-037-4381
Demand History | NSN 5310-00-037-4381
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 5310-00-037-4381 | 2026-03-69 | 100 | US |
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Technical Data | NSN 5310-00-037-4381
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 416F OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HOLE DIAMETER | 0.250 INCHES NOMINAL |
| PERIPHERAL SHAPE STYLE | 1 ROUND |
| OVERALL DIAMETER | 0.555 INCHES NOMINAL |
| CENTER HOLE SHAPE STYLE | 1 ROUND |
| CROSS-SECTIONAL SHAPE STYLE | 1 RECTANGULAR |
| THICKNESS | 0.025 INCHES NOMINAL |
| MANUFACTURERS CODE | 11599 |
| DESIGN CONTROL REFERENCE | 40A5800-025 |
Restrictions/Controls & Freight Information | NSN 5310-00-037-4381
| 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 |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||