NSN 4320-00-354-8925, 4320003548925
Cancelled -> Replaced by 2520007409843

Federal Supply Classification: FSC 4320 - Power and Hand Pumps
National Item Identification Number: NIIN 003548925
Codification Country: United States
Item Name Code: INC 61794
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 4320-00-354-8925

National Stock Number (NSN) 4320-00-354-8925, or NIIN 003548925, (piston,hydraulic motor-pump) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2520007409843.

There are 10 manufacturer part numbers associated with this NSN. 7 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 assigned to Item Name Code (INC) 61794. 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 4320003548925 contains an unknown precious metal.

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 Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 0CARBON STEEL SAE 1030-1040 OR STEEL MIL-S-13048 1030-1040; CIRCULAR SHAPE; OD 3.988 IN.; CENTER BORE DIA 1.000 IN.; ONE FACE CONCAVE,OTHER FACE FLAT; W/CONCENTRIC GROOVE ENCIRCLING PISTON 0.295 IN. W AND 0.185 IN. DP; PISTON NOM H 1.500 IN.
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) CARBON STEEL SAE 1030-1040 OR STEEL MIL-S-13048 1030-1040; CIRCULAR SHAPE; OD 3.988 IN.; CENTER BORE DIA 1.000 IN.; ONE FACE CONCAVE,OTHER FACE FLAT; W/CONCENTRIC GROOVE ENCIRCLING PISTON 0.295 IN. W AND 0.185 IN. DP; PISTON NOM H 1.500 IN.