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NSN 4320-01-284-2258, 4320012842258
PUMP,AXIAL PISTONS

Federal Supply Classification
FSC 4320 - Power and Hand Pumps
National Item Identification Number
NIIN 012842258
Codification Country
United States
Item Name Code
INC 14791
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 4320-01-284-2258

National Stock Number (NSN) 4320-01-284-2258, or NIIN 012842258, (pump,axial pistons) was assigned August 19, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There is only one manufacturer part number 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, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that 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 unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 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 Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 14791. [A POSITIVE DISPLACEMENT DEVICE WHICH UTILIZES THE RECIPROCATING MOTION OF A MULTIPLE NUMBER OF PARALLEL PISTONS ARRANGED AXIALLY IN A CYLINDER BARREL AS A MEANS OF TRANSFERRING A LIQUID FROM ONE PLACE TO ANOTHER. THE PISTONS ARE ACTUATED BY REVOLVING THE CYLINDER BARREL AT AN ANGLE TO THE DRIVE SHAFT AXIS OR BY A TILTING BOX WHEN THE CYLINDER BARREL REVOLVES ON THE DRIVE SHAFT. THE PISTON DISPLACEMENT MAY BE FIXED OR VARIABLE. IT IS DESIGNED TO BE DRIVEN BY A PRIME MOVER WHICH IS NOT AN INTEGRAL PART OF THE 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 4320012842258 does not contain precious metals.

This NSN is associated to Schedule B 8413500070: hydraulic fluid power pumps, radial piston type. 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 .


Technical Characteristics

PUMP BASIC MATERIAL
(AJAL) IRON
DRIVE SHAFT END DIAMETER
(AJAC) 1.2293 INCHES NOMINAL
DRIVE SHAFT TYPE
(AJAB) SPLINED, INVOLUTE EXTERNAL
DRIVE CONNECTION TYPE
(AAYX) RIGID COUPLED
CYLINDER QUANTITY
(AAXZ) 9
DISCHARGE PRESSURE
(AHYW) 5000.0 POUNDS PER SQUARE INCH GAGE
DISCHARGE CONNECTION QUANTITY
(AAYV) 2
DISCHARGE CONNECTION TYPE
(AAYW) RECTANGULAR FLANGE
INTAKE CONNECTION QUANTITY
(AAYT) 1
INTAKE CONNECTION THREAD SIZE AND SERIES/TYPE DESIGNATOR
(ASWT) 0.875-14 UNF
INTAKE CONNECTION TYPE
(AAYU) THREADED INTERNAL
MAXIMUM DISCHARGE FLOW RATE
(AHYV) 33.4 GALLONS PER MINUTE
OPERATING SPEED AT RATED CAPACITY
(AHYZ) 3800.0 REVOLUTIONS PER MINUTE
PUMP RECIPROCATING DESIGN
(AHZJ) SINGLE ACTING
PUMP ROTATION DIRECTION
(AHZD) COUNTERCLOCKWISE
PUMPING ELEMENT TYPE
(AENG) PISTON
PUMPING ELEMENT OPERATING POSITION
(AHZA) HORIZONTAL
RECIPROCATING STROKE TYPE
(AHZN) FIXED
UNABLE TO DECODE
(AJAL) UNABLE TO DECODE
UNPACKAGED UNIT HEIGHT
(AJAH) 8.875 INCHES NOMINAL
UNPACKAGED UNIT LENGTH
(AJAF) 15.595 INCHES NOMINAL
UNPACKAGED UNIT WIDTH
(AJAG) 8.8750 INCHES NOMINAL

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