NSN 4320-01-031-3786, 4320010313786
ROTOR ASSEMBLY,COMPLETE

Federal Supply Classification: FSC 4320 - Power and Hand Pumps
National Item Identification Number: NIIN 010313786
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: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 4320-01-031-3786

National Stock Number (NSN) 4320-01-031-3786, or NIIN 010313786, (rotor assembly,complete) was assigned November 22, 1976 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, 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) 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 data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4320010313786 does not contain precious metals.

This information was last updated on Jun 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) ASSEMBLY CONSISTS OF 1 EA IMPELLER,CRES,PER ASTM A-296,P/N RW-159292,1 EA SHAFT,NICKEL COPPER ALLOY PER QQ-N-281,CLASS A,P/N 964122-1,1 EA KEY,IMPELLER,0.375 IN. SQ BY 4.750 IN. LONG,NICKEL COPPER ALLOY PER QQ-N-281,CLASS A,P/N 37396-76,1 EA KEY,COUPLING,0.312 IN. SQ BY 1.875 IN. LONG,CHRMOLY STEEL PER AISI 4140,P/N 36665-30,2 EA RING,CASING,NICKEL COPPER ALLOY,PER QQ-N-288,CLASS B,COMP B WITH 85000 PSI TENSILE,50000 YIELD,P/N 964125,1 EA FLEXIBLE COUPLING,COMPLETE,COMMERCIAL STEEL,MILL TYPE,FALK T20-70T,DRIVER HALF ROUGH BORED,P/N 964115,2 EA O-RING,0.125 IN. THICK,6000 IN. ID,6.250 IN. OD,BUNA-N PER MIL-P-5516,DUROMETER HARDNESS,70 SHORE A,2 EA SLEEVE,SEAL,NICKEL COPPER ALLOY PER QQ-N-281,CLASS A,P/N 964118,2 EA O-RING,0.125 IN. THICK,1.625 ID,1.875 IN. OD,BUNA-N PER MIL-P-5516,DUROMETER HARDNESS,70 SHORE A,1 EA NUT,SHAFT,LH,NICKEL COPPER ALLOY PER QQ-N-281,CLASS A,P/N 395138-1,4 EA SETSCREW,SOCKET,HEADLESS,0.250-20 THD SIZE,0.250 IN. LONG,NICKEL COPPER ALLOY PER QQ-N-281,I