NSN 4320-01-191-8921, 4320011918921
CYLINDER BLOCK,HYDRAULIC MOTOR-P

Federal Supply Classification: FSC 4320 - Power and Hand Pumps
National Item Identification Number: NIIN 011918921
Codification Country: United States
Item Name Code: INC 61788
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 4320-01-191-8921

National Stock Number (NSN) 4320-01-191-8921, or NIIN 011918921, (cylinder block,hydraulic motor-p) was assigned October 13, 1984 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.

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 Jul 02, 2005, 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 data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 61788. [A BASICALLY CYLINDRICAL ITEM WITH RADIAL OR AXIAL CYLINDER BORES EQUIDISTANT FROM EACH OTHER AND FROM THE SHAFT AXIS. IT IS DESIGNED TO HOUSE THE PISTONS OF A RADIAL OR AXIAL PISTONS MOTOR OR PUMP.]. 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 4320011918921 does not contain precious metals.

This NSN is associated to Schedule B 8413919050: parts of hydraulic fluid power pumps. The Schedule B End Use is listed as industrial engines. NAICS classification category 333996: fluid power pump and motor manufacturing.

This information was last updated on Jun 01, 2025.