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NSN 5310-00-452-8248, 5310004528248
WASHER,RECESSED

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 004528248
Codification Country
United States
Item Name Code
INC 15933
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.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 5310-00-452-8248

National Stock Number (NSN) 5310-00-452-8248, or NIIN 004528248, (washer,recessed) was assigned May 8, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier 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 somewhat common among different platforms, belonging to 2 different weapons systems.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 01, 2008, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 15933. [A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES:WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.]. 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 5310004528248 contains an unknown precious metal.

This NSN is associated to Schedule B 7415210000: copper washers including spring washers not threaded. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on .


Technical Characteristics

BOTTOM RECESS ANGLE
(CRKG) 44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM
BOTTOM RECESS DIAMETER
(CSML) 0.338 INCHES MINIMUM AND 0.345 INCHES MAXIMUM
HOLE DIAMETER
(AAUB) 0.353 INCHES MINIMUM AND 0.355 INCHES MAXIMUM
OUTSIDE DIAMETER
(ABKV) 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
MATERIAL THICKNESS
(ABPX) 0.0596 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM
MATERIAL
(MATT) COPPER ALLOY OVERALL
STYLE DESIGNATOR
(STYL) RECESSED BOTH SIDES
SURFACE FINISH
(CSYM) 16.0 MICROINCHES BOTTOM
SURFACE FINISH
(CSYM) 16.0 MICROINCHES TOP
TOP RECESS ANGLE
(CRSD) 44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM
TOP RECESS DIAMETER
(CQJW) 0.338 INCHES MINIMUM AND 0.345 INCHES MAXIMUM

Manufacturer Part Numbers


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