NSN 4210-00-216-6261, 4210002166261
PISTON,CYLINDER

Federal Supply Classification: FSC 4210 - Fire Fighting Equipment
National Item Identification Number: NIIN 002166261
Codification Country: United States
Item Name Code: INC 77777
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 4210-00-216-6261

National Stock Number (NSN) 4210-00-216-6261, or NIIN 002166261, (piston,cylinder) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

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

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2013, 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) 77777. 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 4210002166261 contains an unknown precious metal.

This information was last updated on Jun 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) JSTEEL,COMP 1113,1.248 IN.MIN,1.249 IN.MAX OD,0.559 IN.MIN,0.562 IN.MAX W,GROOVED 0.1875 FROM END,GROOVE 0.145 IN.MIN,0.150 IN.MAX W,1.000 IN.MIN,1.005 IN.MAX DIA OF GROOVE,0.800 IN.MIN,0.805 IN.MAX DIA OF BORE
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL,COMP 1113,1.248 IN.MIN,1.249 IN.MAX OD,0.559 IN.MIN,0.562 IN.MAX W,GROOVED 0.1875 FROM END,GROOVE 0.145 IN.MIN,0.150 IN.MAX W,1.000 IN.MIN,1.005 IN.MAX DIA OF GROOVE,0.800 IN.MIN,0.805 IN.MAX DIA OF BORE