PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99121663Pump,rotary

Alfa Laval Inc · NSN 4320-00-163-1073 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-163-1073 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-163-1073. Primary manufacturer part number: 99121663.
Features
  • Pump,rotary — FSC 4320
  • Discharge Connection Quantity: 1
  • Drive Connection Type: GEAR
  • Discharge Connection Type: OVAL FLANGE
  • Operation Method: POWERED
  • Intake Connection Quantity: 1
  • Maximum Discharge Flow Rate: 5.4 GALLONS PER MINUTE
  • Intake Connection Type: OVAL FLANGE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-00-163-1073, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Alfa Laval Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-163-1073
Primary Part Number99121663
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAlfa Laval Inc
StatusCANCELLED
Discharge Connection Quantity1
Drive Connection TypeGEAR
Discharge Connection TypeOVAL FLANGE
Operation MethodPOWERED
Intake Connection Quantity1
Maximum Discharge Flow Rate5.4 GALLONS PER MINUTE
Intake Connection TypeOVAL FLANGE
Rotary Pump DesignGEAR
Media for Which DesignedHYDROCARBON FUELS AND OILS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5330-00-297-733121663 INTERCHANGEABLE
Gasket
Arvinmeritor Inc
2530-00-426-83682-1663 INTERCHANGEABLE
Adjuster,slack,brake
Terex Usa, Llc Dba Terex Equipment Services
5935-00-563-1430 INTERCHANGEABLE
Connector,plug,electrical
5305-01-188-049221663 INTERCHANGEABLE
Screw Assy. Vent
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
2530-01-265-324921239 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Mark Industries
6620-01-310-6653NW21663 INTERCHANGEABLE
Gage Unit,engine
Tld Wollard Llc
4320-01-556-74629912166-3 INTERCHANGEABLE
Pump,rotary
Textron Aviation Inc
Cross-Reference Index
Part NumberManufacturer
21663 Alfa Laval Inc (USA)
21663-HK Hatch & Kirk, Inc. (USA)
99121663 PRIMARY Alfa Laval Inc (USA)
Related Parts
5330-00-297-7331INTERCHANGEABLE
GASKET
21663
2530-00-426-8368INTERCHANGEABLE
ADJUSTER,SLACK,BRAKE
2-1663
5935-00-563-1430INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5305-01-188-0492INTERCHANGEABLE
SCREW ASSY. VENT
21663
2530-01-265-3249INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
21239
6620-01-310-6653INTERCHANGEABLE
GAGE UNIT,ENGINE
NW21663
4320-01-556-7462INTERCHANGEABLE
PUMP,ROTARY
9912166-3

Frequently Asked Questions

What is NSN 4320-00-163-1073?

NSN 4320-00-163-1073 is a Pump,rotary, manufactured by Alfa Laval Inc, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-163-1073?

NSN 4320-00-163-1073 has 3 cross-referenced part numbers: 21663 (Alfa Laval Inc), 21663-HK (Hatch & Kirk, Inc.), 99121663 (Alfa Laval Inc).

What NSN replaces 4320-00-163-1073?

There are 7 known substitutes for 4320-00-163-1073: 5330-00-297-7331, 2530-00-426-8368, 5935-00-563-1430 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 99121663?

Key specifications for 99121663: Discharge Connection Quantity: 1; Drive Connection Type: GEAR; Discharge Connection Type: OVAL FLANGE; Operation Method: POWERED. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-163-1073 still in active supply?

NSN 4320-00-163-1073 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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