PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2537Pump,reciprocating

Bourns Inc · NSN 4320-01-373-6480 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-373-6480 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-373-6480. Primary manufacturer part number: 2537.
Features
  • Pump,reciprocating — FSC 4320
  • Discharge Pressure: 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
  • Cylinder Quantity: 3
  • Maximum Discharge Flow Rate: 20.0 GALLONS PER MINUTE
  • Pumping Element Type: PISTON
  • Pump Reciprocating Design: SINGLE ACTING
  • Drive Shaft End Diameter: 1.181 INCHES NOMINAL IN
  • Drive Shaft Type: KEY TYPE, EXTERNAL
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,reciprocating, cataloged under National Stock Number 4320-01-373-6480, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Bourns Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-373-6480
Primary Part Number2537
Item NamePump,reciprocating
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBourns Inc
StatusACTIVE
Discharge Pressure000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
Cylinder Quantity3
Maximum Discharge Flow Rate20.0 GALLONS PER MINUTE
Pumping Element TypePISTON
Pump Reciprocating DesignSINGLE ACTING
Drive Shaft End Diameter1.181 INCHES NOMINAL IN
Drive Shaft TypeKEY TYPE, EXTERNAL
Media for Which DesignedHYDROCARBON FUELS AND OILS
Operating Speed at Rated Capacity900.0 REVOLUTIONS PER MINUTE
Operation MethodPOWERED
Drive Connection TypeV-BELT
Discharge Connection Quantity2
Intake Connection Quantity2
Discharge Connection Thread Size and Series/type Designator0.750-14 NPT
Intake Connection TypeTHREADED INTERNAL
Mounting TypeFRAME
Intake Connection Thread Size and Series/type Designator1.250-11-1/2 NPT
Pumping Element Operating PositionHORIZONTAL
Discharge Connection TypeTHREADED INTERNAL
Reciprocating Stroke TypeFIXED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-009-116625-37BB INTERCHANGEABLE
Shell,electrical Connector
Molded Devices, Inc. Dba Mdi Div Molded Devices
3455-00-023-4280 INTERCHANGEABLE
File,rotary
5840-00-197-01762537 INTERCHANGEABLE
Roller Assembly
Gifft T H Co Inc
5120-00-288-77855120-00-288-7785 INTERCHANGEABLE
Alignment Tool,electronic Equipm
General Services Administration Federal Supply Service
5930-00-504-8128122902LR INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Electro Switch Corp
2990-00-904-49561999 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
5365-00-949-95162537 INTERCHANGEABLE
Spacer,sleeve
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5305-00-993-1848MS35207-265 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
7310-01-040-2138 INTERCHANGEABLE
Timer,oven,aircraft
2540-01-093-05682-537 INTERCHANGEABLE
Ring,headlamp Retai
Am General Llc
Cross-Reference Index
Part NumberManufacturer
2537/57783 Slce Watermakers (FRA)
2537 PRIMARY Bourns Inc (USA)
RAR0859 Naval Group Site De Lorient (FRA)
2537 PRIMARY Cat Pumps Corp (USA)
04.20193.000 Rochem Marine Srl (ITA)
710118 Slce Watermakers (FRA)
W12250 Pall Europe Ltd (GBR)
Related Parts
5935-00-009-1166INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
25-37BB
3455-00-023-4280INTERCHANGEABLE
FILE,ROTARY
5840-00-197-0176INTERCHANGEABLE
ROLLER ASSEMBLY
2537
5120-00-288-7785INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
5120-00-288-7785
5930-00-504-8128INTERCHANGEABLE
SWITCH,ROTARY
122902LR
2990-00-904-4956INTERCHANGEABLE
MUFFLER,EXHAUST
1999
5365-00-949-9516INTERCHANGEABLE
SPACER,SLEEVE
2537
5305-00-993-1848INTERCHANGEABLE
SCREW,MACHINE
MS35207-265
7310-01-040-2138INTERCHANGEABLE
TIMER,OVEN,AIRCRAFT
2540-01-093-0568INTERCHANGEABLE
RING,HEADLAMP RETAI
2-537
6150-01-143-7341INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL,
600160
4820-01-219-4111INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR

Frequently Asked Questions

What is NSN 4320-01-373-6480?

NSN 4320-01-373-6480 is a Pump,reciprocating, manufactured by Bourns Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-373-6480?

NSN 4320-01-373-6480 has 7 cross-referenced part numbers: 2537/57783 (Slce Watermakers), 2537 (Bourns Inc), RAR0859 (Naval Group Site De Lorient), 2537 (Cat Pumps Corp), 04.20193.000 (Rochem Marine Srl) and 2 more.

What NSN replaces 4320-01-373-6480?

There are 12 known substitutes for 4320-01-373-6480: 5935-00-009-1166, 3455-00-023-4280, 5840-00-197-0176 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2537?

Key specifications for 2537: Discharge Pressure: 000.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES; Cylinder Quantity: 3; Maximum Discharge Flow Rate: 20.0 GALLONS PER MINUTE; Pumping Element Type: PISTON. 21 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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