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NSN 5310-00-291-7497, 5310002917497
WASHER,FLAT

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 002917497
Codification Country
United States
Item Name Code
INC 13393
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 5310-00-291-7497

National Stock Number (NSN) 5310-00-291-7497, or NIIN 002917497, (washer,flat) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). NIIN 002917497 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 13393. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310002917497 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

THICKNESS
(ABNM) 0.062 INCHES NOMINAL
PERIPHERAL SHAPE STYLE
(ABMW) 1 ROUND
CROSS-SECTIONAL SHAPE STYLE
(AAGR) RECTANGULAR
PERIPHERAL SHAPE STYLE
(ABMW) ROUND
CENTER HOLE SHAPE STYLE
(ABMX) 1 ROUND
MATERIAL
(MATT) PLASTIC PHENOLIC OVERALL
HOLE DIAMETER
(AAUB) 0.266 INCHES NOMINAL
CENTER HOLE SHAPE STYLE
(ABMX) ROUND
OVERALL DIAMETER
(ADAV) 0.500 INCHES NOMINAL
CENTER HOLE S
(ABMX) 1

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