NSN 5340-01-666-1540, 5340016661540
FAIRLEAD,BLOCK

Federal Supply Classification: FSC 5340 - Hardware, Commercial
National Item Identification Number: NIIN 016661540
Codification Country: United States
Item Name Code: INC 37382
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: (P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5340-01-666-1540

National Stock Number (NSN) 5340-01-666-1540, or NIIN 016661540, (fairlead,block) was assigned August 28, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers 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, 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 29, 2017, 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 does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 37382. [A MULTIPIECE ITEM OF VARIOUS SHAPES THAT MUST HAVE ONE OR MORE HOLES DESIGNED TO PREVENT SNAGGING OR CHAFING AND PROVIDE SUPPORT AND/OR GUIDANCE TO CABLE, TUBES AND THE LIKE PASSING THROUGH IT. IT IS NOT DESIGNED TO GRIP AN ITEM. IT MAY BE ATTACHED TO ANOTHER OBJECT OR STRUCTURE. EXCLUDES:CLAMP, BLOCK AND BRACKET, PIPE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340016661540 does not contain precious metals.

This information was last updated on Aug 01, 2025.