PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

XL1-1/2APump,rotary

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 4320-01-486-0685 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-486-0685 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-486-0685. Primary manufacturer part number: XL1-1/2A.
Features
  • Pump,rotary — FSC 4320
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Operation Method: POWERED
  • Rotary Pump Design: GEAR AND VANE
  • Discharge Connection Type: THREADED INTERNAL
  • Operating Speed at Rated Capacity: 1800.0 REVOLUTIONS PER MINUTE
  • Maximum Discharge Flow Rate: 88.0 GALLONS PER MINUTE
  • 2 verified cross-references
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-01-486-0685, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-486-0685
Primary Part NumberXL1-1/2A
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Media for Which DesignedHYDROCARBON FUELS AND OILS
Operation MethodPOWERED
Rotary Pump DesignGEAR AND VANE
Discharge Connection TypeTHREADED INTERNAL
Operating Speed at Rated Capacity1800.0 REVOLUTIONS PER MINUTE
Maximum Discharge Flow Rate88.0 GALLONS PER MINUTE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-00-188-816323877 INTERCHANGEABLE
Attenuator,variable
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
23877 Pernin Equipements (FRA)
XL1-1/2A PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
5985-00-188-8163INTERCHANGEABLE
ATTENUATOR,VARIABLE
23877

Frequently Asked Questions

What is NSN 4320-01-486-0685?

NSN 4320-01-486-0685 is a Pump,rotary, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-486-0685?

NSN 4320-01-486-0685 has 2 cross-referenced part numbers: 23877 (Pernin Equipements), XL1-1/2A (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 4320-01-486-0685?

There is 1 known substitute for 4320-01-486-0685: 5985-00-188-8163. Verify interchangeability with system specifications before substitution.

What are the specifications of XL1-1/2A?

Key specifications for XL1-1/2A: Media for Which Designed: HYDROCARBON FUELS AND OILS; Operation Method: POWERED; Rotary Pump Design: GEAR AND VANE; Discharge Connection Type: THREADED INTERNAL. 7 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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