Product Details | FLAT WASHER

5310-00-253-8220 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: Q4210, 7099332P001, 763712, 5310-00-253-8220, 00-253-8220, 5310002538220, 002538220

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 28 JUL 1969 00-253-8220

Drawings & Photos | NSN 5310-00-253-8220


Demand History | NSN 5310-00-253-8220

Part Number Request Date QTY Origin
5310-00-253-8220 2015-12-340 288 DIBBS
5310-00-253-8220 2015-07-210 288 DIBBS

Cross Reference | NSN 5310-00-253-8220

Part Number Cage Code Manufacturer
7099332P001 03538 LOCKHEED MARTIN CORPORATION DIV MST
763712 A2309 WHITEHEAD SISTEMI SUBACQUEI SPA
Q4210 07322 MINNESOTA RUBBER CO

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Technical Data | NSN 5310-00-253-8220

Characteristic Specifications
MATERIAL RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 412A,FSCM 24446 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER 0.724 INCHES MINIMUM AND 0.744 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 1.002 INCHES MINIMUM AND 1.022 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
MANUFACTURERS CODE 03538
DESIGN CONTROL REFERENCE 7099332P001

Restrictions/Controls & Freight Information | NSN 5310-00-253-8220

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 KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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 5310-00-253-8220

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each