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NSN 5310-00-470-3211, 5310004703211
WASHER,LOCK

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 004703211
Codification Country
United States
Item Name Code
INC 14218
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 5310-00-470-3211

National Stock Number (NSN) 5310-00-470-3211, or NIIN 004703211, (washer,lock) was assigned January 15, 1971 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 one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Mar 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 14218. [A WASHER, USUALLY ROUND, WITH A CENTRALLY-LOCATED HOLE. ITS EDGES AND TWO BEARING SURFACES ARE DESIGNED IN SUCH A WAY THAT APPLIED PRESSURE BRINGS INTO PLAY THE SPRING TENSION AND/OR FRICTIONAL LOCKING PRINCIPLE THAT MATERIALLY RESISTS ANY TENDENCY TOWARD TURNING. IT MAY BE MADE OF ONE OR TWO PIECES.]. 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 5310004703211 contains an unknown precious metal.

This NSN is associated to Schedule B 7318210000: spring washers and other lock washers, iron or steel. 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

HARDNESS RATING
(CQFM) 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
HOLE DIAMETER
(AAUB) 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM
OUTSIDE DIAMETER
(ABKV) 0.865 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) 66 MIL STD ALL MATERIAL RESPONSES OVERALL
MATERIAL THICKNESS
(ABPX) 0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM
MATERIAL
(MATT) STEEL COMP 302 OVERALL OR STEEL COMP 420 OVERALL
STYLE DESIGNATOR
(STYL) FLAT EXTERNAL AND INTERNAL TEETH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-F-14072,FINISH NO. E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) PASSIVATE OVERALL

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