Product Details | FLAT WASHER

5310-00-168-2890 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: 560759, 5310-00-168-2890, 00-168-2890, 5310001682890, 001682890

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 23 SEP 1970 00-168-2890

Drawings & Photos | NSN 5310-00-168-2890


Demand History | NSN 5310-00-168-2890

Part Number Request Date QTY Origin
5310-00-168-2890 2019-08-216 506 DIBBS
5310-00-168-2890 2018-05-150 602 DIBBS
5310-00-168-2890 2013-10-304 961 DIBBS
5310-00-168-2890 2009-06-173 1900 DIBBS
5310-00-168-2890 2009-03-89 783 DIBBS
5310-00-168-2890 2009-01-29 513 DIBBS
5310-00-168-2890 2008-10-301 787 DIBBS
5310-00-168-2890 2008-05-129 971 DIBBS
5310-00-168-2890 2008-04-103 1000 DIBBS
5310-00-168-2890 2008-04-99 1000 DIBBS

Cross Reference | NSN 5310-00-168-2890

Part Number Cage Code Manufacturer
560759 73030 HAMILTON SUNDSTRAND CORPORATION

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Technical Data | NSN 5310-00-168-2890

Characteristic Specifications
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION M1L-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 72.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 76.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM
HOLE DIAMETER 0.318 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 1.080 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.088 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
SPECIAL FEATURES 0.125 IN. RADIUS ON OUTER EDGE OF BOTH BEARING SURFACES
III HEAT TREATMENT AS FABRICATED
MANUFACTURERS CODE 73030
DESIGN CONTROL REFERENCE 560759

Restrictions/Controls & Freight Information | NSN 5310-00-168-2890

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:UPrecious 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
NMF Description 194160 WASHER OR GASKETS, IRON OR STEEL,
Less than car load rating
Less than truck load rating U 50.0
Water commodity Code 713 unknown
Originating Activity Code KE Naval ICP
Philadelphia, PA 19111
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5310-00-168-2890

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
Q
EA : Each