Product Details | FLAT WASHER

5310-00-780-1801 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: 8591974, 859197-4, 5310-00-780-1801, 00-780-1801, 5310007801801, 007801801

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 20-MAR-68 00-780-1801

Drawings & Photos | NSN 5310-00-780-1801


Cross Reference | NSN 5310-00-780-1801

Part Number Cage Code Manufacturer
58157N276-032 70210 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL
58157N276-032 72599 ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
859197-4 59364 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL
859197-4 99193 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL
S8157N276-032 70210 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL
S8157N276-032 72599 ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
S8157N276-032 99193 HONEYWELL INTERNATIONAL INC. DBA HONEYWELL

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Technical Data | NSN 5310-00-780-1801

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER 0.290 INCHES MINIMUM AND 0.294 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.445 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.029 INCHES MINIMUM AND 0.031 INCHES MAXIMUM
MANUFACTURERS CODE 59364
DESIGN CONTROL REFERENCE 859197-4

Restrictions/Controls & Freight Information | NSN 5310-00-780-1801

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information