PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1SPump,rotary

Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa · NSN 4320-00-833-6359 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-833-6359 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-833-6359. Primary manufacturer part number: 1S.
Features
  • Pump,rotary — FSC 4320
  • Drive Shaft End Diameter: 0.562 INCHES NOMINAL IN
  • Operation Method: POWERED
  • Pumping Element Operating Position: HORIZONTAL
  • Discharge Connection Thread Size and Series/type Designator: 0.375-18 NPT
  • Intake Connection Quantity: 1
  • Drive Connection Type: RIGID COUPLED
  • Intake Connection Thread Size and Series/type Designator: 0.375-18 NPT
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-00-833-6359, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-833-6359
Primary Part Number1S
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBrown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
StatusACTIVE
Drive Shaft End Diameter0.562 INCHES NOMINAL IN
Operation MethodPOWERED
Pumping Element Operating PositionHORIZONTAL
Discharge Connection Thread Size and Series/type Designator0.375-18 NPT
Intake Connection Quantity1
Drive Connection TypeRIGID COUPLED
Intake Connection Thread Size and Series/type Designator0.375-18 NPT
Pump Rotation DirectionCOUNTERCLOCKWISE
Drive Shaft Length1.688 INCHES NOMINAL IN
Rotary Pump DesignGEAR
Drive Shaft TypeMACHINE KEYWAY
Intake Connection TypeTHREADED INTERNAL
Discharge Connection Quantity1
Discharge Connection TypeTHREADED INTERNAL
Media for Which DesignedHYDROCARBON FUELS AND OILS
Operating Speed at Rated Capacity1725.0 REVOLUTIONS PER MINUTE
Mounting TypeFRAME
Maximum Discharge Flow Rate4.5 GALLONS PER MINUTE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-144-84971H INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
6635-00-490-2595 INTERCHANGEABLE
Balancing Machine,dynamic-Static
4320-00-516-40681S INTERCHANGEABLE
Pump,hydraulic Ram,hand Driven
Mcmaster-Carr Supply Co
5325-00-816-87072JC2773H05 INTERCHANGEABLE
Stud,snapslide Fastener
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4320-00-953-8509714-61010-9 INTERCHANGEABLE
Pump,rotary
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
Cross-Reference Index
Part NumberManufacturer
1S PRIMARY Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
820-66-306 Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
713-10-2 Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
1S713-10-3 Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
1S-713-10-2 Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
Related Parts
3110-00-144-8497INTERCHANGEABLE
BEARING,BALL,ANNULAR
1H
6635-00-490-2595INTERCHANGEABLE
BALANCING MACHINE,DYNAMIC-STATIC
4320-00-516-4068INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
1S
5325-00-816-8707INTERCHANGEABLE
STUD,SNAPSLIDE FASTENER
2JC2773H05
4320-00-953-8509INTERCHANGEABLE
PUMP,ROTARY
714-61010-9

Frequently Asked Questions

What is NSN 4320-00-833-6359?

NSN 4320-00-833-6359 is a Pump,rotary, manufactured by Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-833-6359?

NSN 4320-00-833-6359 has 5 cross-referenced part numbers: 1S (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 820-66-306 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 713-10-2 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 1S713-10-3 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa), 1S-713-10-2 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa).

What NSN replaces 4320-00-833-6359?

There are 5 known substitutes for 4320-00-833-6359: 3110-00-144-8497, 6635-00-490-2595, 4320-00-516-4068 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1S?

Key specifications for 1S: Drive Shaft End Diameter: 0.562 INCHES NOMINAL IN; Operation Method: POWERED; Pumping Element Operating Position: HORIZONTAL; Discharge Connection Thread Size and Series/type Designator: 0.375-18 NPT. 18 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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