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NSN 5310-00-437-8523, 5310004378523
Cancelled -> Replaced by 5310013178162

Federal Supply Classification
FSC 5310 - Nuts and Washers
National Item Identification Number
NIIN 004378523
Codification Country
United States
Item Name Code
INC 01857
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 5310-00-437-8523

National Stock Number (NSN) 5310-00-437-8523, or NIIN 004378523, (nut,plain,hexagon) was assigned September 12, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5310013178162, 5310012701572.

There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is 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. ISO Group has a strong supply network for this NSN, with 23 sources of supply.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 30, 2010. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM5A410MQA48. The total value of the awarded contracts has been US$ 868.66.

This NSN is very common among different weapons systems, belonging to 103 different platforms.

There has been a small amount of 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 Feb 28, 2020, 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) 01857. [A NUT, FLAT ON TOP AND BOTTOM HAVING 6 FLAT SIDES. FOR ITEMS WHICH HAVE INTERNAL TAPERED OR STRAIGHT (PARALLEL) PIPE THREADS, SPECIFIC ELECTRICAL CONDUIT SIZE DESIGNATION, AND WHICH WHEN INSTALLED, PROVIDE A METHOD OF TIGHTENING TO LOCK THE CONNECTION, SEE LOCKNUT, ELECTRICAL CONDUIT. SEE ALSO LOCKNUT, TUBE FITTING. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH ACROSS THE FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH ACROSS THE FLATS IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)]. 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 5310004378523 contains an unknown precious metal.

This NSN is associated to Schedule B 7415290000: copper screws, nuts, bolts, rivets, and other fasteners 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

MATERIAL
(MATT) COPPER ALLOY 462 OVERALL OR COPPER ALLOY 464 OVERALL OR COPPER ALLOY 360 OVERALL
BEARING SURFACE TYPE
(CRTM) FLAT OR CHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637 FED SPEC 2ND MATERIAL RESPONSE OR QQ-B-626 ALLOY 360 FED SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIAL
(MATT) COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 360 OVERALL
NOMINAL THREAD SIZE
(CQJX) 0.250 INCHES
NONDEFINITIVE SPEC/STD DATA
(ZZZT) 2 TYPE AND 13 STYLE
NUT HEIGHT
(ADEA) 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
NUT STYLE
(ACTA) HEXAGON
WIDTH ACROSS FLATS
(ASDB) 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT
(SFTT) TIN OVERALL
THREAD CLASS
(AAJD) 2B
THREAD DIRECTION
(AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH
(CMLP) 28
THREAD SERIES
(BZRR) UNF

Manufacturer Part Numbers


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