NSN 5310-00-042-6911, 5310000426911
NUT,PLAIN,SLOTTED,HEXAGON

Federal Supply Classification: FSC 5310 - Nuts and Washers
National Item Identification Number: NIIN 000426911
Codification Country: United States
Item Name Code: INC 01859
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 5310-00-042-6911

National Stock Number (NSN) 5310-00-042-6911, or NIIN 000426911, (nut,plain,slotted,hexagon) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers 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.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. 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) 01859. [A NUT HAVING A FLAT BEARING SURFACE AND 6 FLAT SIDES WITH SLOTS IN ITS UPPER PORTION. IT IS DESIGNED TO PROVIDE POSITIVE LOCKING WHEN USED WITH A SOLID OR SPLIT (COTTER) PIN. EXCLUDES:NUT (1), PLAIN, CASTELLATED, HEXAGON.]. 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 5310000426911 does not contain precious metals.

This NSN is associated to Schedule B 7318160000: nuts of 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 Aug 01, 2025.

Technical Characteristics

MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT: (SFTT) CADMIUM OR ZINC OVERALL
SURFACE TREATMENT: (SFTT) CADMIUM OVERALL OR ZINC OVERALL
BEARING SURFACE TYPE: (CRTM) CHAMFERED OR WASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) UNABLE TO DECODE
MATERIAL: (MATT) UNABLE TO DECODE
NOMINAL THREAD SIZE: (CQJX) 0.500 INCHES
NUT HEIGHT: (ADEA) 0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM
NUT STYLE: (ACTA) SLOTTED, HEXAGON
THREAD CLASS: (AAJD) 2B
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH: (CMLP) 13
THREAD SERIES: (BZRR) UNC
WIDTH ACROSS FLATS: (ASDB) 0.8500 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM
MATERIAL: (MATT) STEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL