NSN 1620-01-012-1426, 1620010121426
ADAPTER,PISTON,LAND

Federal Supply Classification: FSC 1620 - Aircraft Landing Gear Components
National Item Identification Number: NIIN 010121426
Codification Country: United States
Item Name Code: INC 77777
Criticality: (Y) This item does not have a nuclear hardened feature but does have other critical feature(s) 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: We have 4 qualified suppliers

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DLMS^® Summary

National Stock Number 1620-01-012-1426

National Stock Number (NSN) 1620-01-012-1426, or NIIN 010121426, (adapter,piston,land) was assigned November 5, 1975 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 2 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 10, 2020. There have been 8 contracts issued for this part number, with 8 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 7 different suppliers. The last contract numbers awarded were: SPEHA620F0750, SPEHA620F0750, SPEHA620F0750, SPEHA619F0771, SPEHA619F0771. The total value of the awarded contracts has been US$ 780,121.79.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

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 Aug 02, 2005, 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 but does have other critical feature(s) 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 1620010121426 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

CRITICALITY CODE JUSTIFICATION: (CRTL) FEAT
OVERALL LENGTH: (ABHP) 7.320 INCHES NOMINAL
MATERIAL: (MATT) ALUMINUM ALLOY
SPECIAL FEATURES: (FEAT) 4.950 IN. OD X 0.180 IN. LG FIRST END; 4.740 IN. MAX OD, 4.500 IN. MIN OD SECOND END; TWELVE HOLES EQUALLY SPACED, STAGGERED, 1.250 IN. DIA EA, IN THREE ROWS; 5.200 IN., 3.500 IN. AND 1.800 IN. FROM SECOND END; MACHINED SURFACES 6.30 AND 125.0 MICRO INCH FINISH
SURFACE TREATMENT: (SFTT) ANODIZE