Product Details | FLAT WASHER

5310-01-143-1770 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: 65103-11039-102, 5310-01-143-1770, 01-143-1770, 5310011431770, 6510311039102, 011431770

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 28 NOV 1982 01-143-1770

Drawings & Photos | NSN 5310-01-143-1770


Demand History | NSN 5310-01-143-1770

Part Number Request Date QTY Origin
65103-11039-102 2021-10-292 7 DIBBS
65103-11039-102 2021-08-216 2 DIBBS
5310-01-143-1770 2014-10-282 137 DIBBS
5310-01-143-1770 2014-09-271 137 DIBBS
5310-01-143-1770 2014-08-213 115 DIBBS
5310-01-143-1770 2014-04-104 28 DIBBS
5310-01-143-1770 2014-04-93 28 DIBBS
5310-01-143-1770 2014-02-42 14 DIBBS
5310-01-143-1770 2013-10-281 60 DIBBS
5310-01-143-1770 2013-09-248 50 DIBBS
5310-01-143-1770 2013-08-234 14 DIBBS
5310-01-143-1770 2013-07-196 16 DIBBS
5310-01-143-1770 2013-03-65 60 DIBBS
5310-01-143-1770 2010-02-36 215 DIBBS
5310-01-143-1770 2009-05-150 141 DIBBS
5310-01-143-1770 2008-03-80 121 DIBBS

Cross Reference | NSN 5310-01-143-1770

Part Number Cage Code Manufacturer
65103-11039-102 54878 ROTAIR INDUSTRIES, INC.
65103-11039-102 65780 TEK PRECISION CO., LTD.
65103-11039-102 78286 SIKORSKY AIRCRAFT CORPORATION

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Technical Data | NSN 5310-01-143-1770

Characteristic Specifications
SURFACE TREATMENT OXIDE OVERALL
HARDNESS RATING 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
HOLE DIAMETER 2.842 INCHES MINIMUM AND 2.852 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 3.250 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 4 ROUND W/FLATS
HOLE WIDTH ACROSS FLATS 2.628 INCHES MINIMUM AND 2.630 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
SURFACE FINISH 90.0 MICROINCHES ALL SURFACES
MANUFACTURERS CODE 78286
DESIGN CONTROL REFERENCE 65103-11039-102

Restrictions/Controls & Freight Information | NSN 5310-01-143-1770

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
NMF Description 194160 WASHER OR GASKETS, IRON OR STEEL,
Less than car load rating U 50
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
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 5310-01-143-1770

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
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
1
EA : Each