PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H53-1Pump Unit,centrifugal

Armstrong Pumps Inc · NSN 4320-00-239-5000 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-239-5000 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-239-5000. Primary manufacturer part number: H53-1.
Features
  • Pump Unit,centrifugal — FSC 4320
  • Discharge Connection Type: THREADED INTERNAL
  • Operating Speed at Rated Capacity: 1750.0 REVOLUTIONS PER MINUTE
  • Intake Connection Thread Size and Series/type Designator: 1.500-11-1/2 NPT
  • Centrifugal Pump Impeller Suction Type: SINGLE
  • Total Head: 16.000 FEET FT
  • Unpackaged Unit Height: 11.500 INCHES NOMINAL IN
  • Discharge Connection Thread Size and Series/type Designator: 1.500-11-1/2 NPT
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Iron Pump Basic construction
General Description

The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-239-5000, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Armstrong Pumps Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-239-5000
Primary Part NumberH53-1
Item NamePump Unit,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerArmstrong Pumps Inc
StatusACTIVE
Discharge Connection TypeTHREADED INTERNAL
Operating Speed at Rated Capacity1750.0 REVOLUTIONS PER MINUTE
Intake Connection Thread Size and Series/type Designator1.500-11-1/2 NPT
Centrifugal Pump Impeller Suction TypeSINGLE
Total Head16.000 FEET FT
Unpackaged Unit Height11.500 INCHES NOMINAL IN
Discharge Connection Thread Size and Series/type Designator1.500-11-1/2 NPT
Current Rating in Amps3.2 AND 1.6
Unpackaged Unit Width7.8750 INCHES NOMINAL IN
Unpackaged Unit Length20.625 INCHES NOMINAL IN
Prime Mover TypeELECTRIC MOTOR
Pumping Element Operating PositionHORIZONTAL
Centrifugal Pump DesignRADIAL FLOW
Maximum Discharge Flow Rate70.0 GALLONS PER MINUTE
Inclosure TypeFULLY INCLOSED
Centrifugal Pump Impeller Quantity1
Discharge Pressure75.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
MaterialIRON PUMP BASIC
Cooling MethodBLOWER COOLED
Prime Mover Power Rating0.5 HORSEPOWER
PhaseSINGLE
Voltage in Volts115.0 AND 230.0
Frequency in Hertz60.0
Intake Connection TypeTHREADED INTERNAL
Intake Connection Quantity1
Discharge Connection Quantity1
Prime Mover Quantity1
Stage Quantity1
Pump Quantity1
Current TypeAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3040-00-138-5872 INTERCHANGEABLE
Cylinder Assembly,actuating,line
6625-00-351-6007SCC72685 INTERCHANGEABLE
Voltmeter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4320-00-534-5277H53 INTERCHANGEABLE
Ring,lantern
Circor Naval Solutions Llc Dba Warren Pumps
5950-00-883-19349976090-6 INTERCHANGEABLE
Transformer,pulse
Us Army Aviation and Missile Command
6105-01-261-4972 INTERCHANGEABLE
Motor,alternating Current
5340-01-433-5071 INTERCHANGEABLE
Handle,manual Control
5315-01-499-8570H531 INTERCHANGEABLE
Key,machine
Sharp Industries Inc
Cross-Reference Index
Part NumberManufacturer
H-53 Armstrong Pumps Inc (USA)
60-13SJ6 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
60-3SJ6 Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
H53-1 PRIMARY Armstrong Pumps Inc (USA)
60-13S Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div (USA)
Related Parts
3040-00-138-5872INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
6625-00-351-6007INTERCHANGEABLE
VOLTMETER
SCC72685
4320-00-534-5277INTERCHANGEABLE
RING,LANTERN
H53
5950-00-883-1934INTERCHANGEABLE
TRANSFORMER,PULSE
9976090-6
6105-01-261-4972INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5340-01-433-5071INTERCHANGEABLE
HANDLE,MANUAL CONTROL
5315-01-499-8570INTERCHANGEABLE
KEY,MACHINE
H531

Frequently Asked Questions

What is NSN 4320-00-239-5000?

NSN 4320-00-239-5000 is a Pump Unit,centrifugal, manufactured by Armstrong Pumps Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-239-5000?

NSN 4320-00-239-5000 has 5 cross-referenced part numbers: H-53 (Armstrong Pumps Inc), 60-13SJ6 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), 60-3SJ6 (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div), H53-1 (Armstrong Pumps Inc), 60-13S (Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div).

What NSN replaces 4320-00-239-5000?

There are 7 known substitutes for 4320-00-239-5000: 3040-00-138-5872, 6625-00-351-6007, 4320-00-534-5277 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H53-1?

Key specifications for H53-1: Discharge Connection Type: THREADED INTERNAL; Operating Speed at Rated Capacity: 1750.0 REVOLUTIONS PER MINUTE; Intake Connection Thread Size and Series/type Designator: 1.500-11-1/2 NPT; Centrifugal Pump Impeller Suction Type: SINGLE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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