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NSN 5310-00-890-2732, 5310008902732
WASHER,FLAT

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 008902732
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 5310-00-890-2732

National Stock Number (NSN) 5310-00-890-2732, or NIIN 008902732, (washer,flat) was assigned May 5, 1972 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

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

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

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 5310008902732 contains an unknown precious metal.

This information was last updated on .


Technical Characteristics

CENTER HOLE SHAPE STYLE
(ABMX) ROUND
SPECIAL FEATURES
(FEAT) ONE BEARING SURFACE CHAMFERED 0.118 IN. BY 45 DEG
III HEAT TREATMENT
(HEAT) QUENCHED AND TEMPERED
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-S-8949 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) CADMIUM OVERALL
MATERIAL
(MATT) STEEL OVERALL
PERIPHERAL SHAPE STYLE
(ABMW) ROUND
HEAT TREATMENT
(HEAT) QUENCHED AND TEMPERED
HARDNESS RATING
(CQFM) 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
TEST DATA DOCUMENT
(TEST) 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
CENTER HOLE SHAPE STYLE
(ABMX) 1 ROUND
OVERALL DIAMETER
(ADAV) 1.750 INCHES NOMINAL
THICKNESS
(ABNM) 0.188 INCHES NOMINAL
HOLE DIAMETER
(AAUB) 0.891 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE
(AAGR) RECTANGULAR

Manufacturer Part Numbers


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