PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

225A1Pump,rotary

Steward Machine Co Inc · NSN 4320-01-165-0797 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-165-0797 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-165-0797. Primary manufacturer part number: 225A1.
Features
  • Pump,rotary — FSC 4320
  • Operating Speed at Rated Capacity: 1140.0 REVOLUTIONS PER MINUTE
  • Maximum Discharge Flow Rate: 10.0 GALLONS PER MINUTE
  • Media for Which Designed: OIL
  • 6 verified cross-references
  • Primary manufacturer: Steward Machine Co Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-01-165-0797, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Steward Machine Co Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, 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
NSN4320-01-165-0797
Primary Part Number225A1
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSteward Machine Co Inc
StatusACTIVE
Operating Speed at Rated Capacity1140.0 REVOLUTIONS PER MINUTE
Maximum Discharge Flow Rate10.0 GALLONS PER MINUTE
Media for Which DesignedOIL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-411-520609P233169P12 INTERCHANGEABLE
Connector,receptacle,electrical
Herley Chicago Dba Stewart Warner Electronics
5961-01-147-889022-1602 INTERCHANGEABLE
Semiconductor Device,diode
Astronics Test Systems Inc
4320-01-165-0833 INTERCHANGEABLE
Housing,liquid Pump
5325-01-190-216960225 INTERCHANGEABLE
Grommet,nonmetallic
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
5310-01-593-532060225 INTERCHANGEABLE
Washer,key
Gopher Electronics Company
Cross-Reference Index
Part NumberManufacturer
60-225 PIECE 225A1 Hardie-Tynes Co., Inc. (USA)
3298995 Hardie-Tynes Co., Inc. (USA)
225A1 PRIMARY Steward Machine Co Inc (USA)
60-225 Naval Ship Systems Command (USA)
221-602 Hardie-Tynes Co., Inc. (USA)
225A1 Hardie-Tynes Co., Inc. (USA)
Related Parts
5935-00-411-5206INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
09P233169P12
5961-01-147-8890INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
22-1602
4320-01-165-0833INTERCHANGEABLE
HOUSING,LIQUID PUMP
5325-01-190-2169INTERCHANGEABLE
GROMMET,NONMETALLIC
60225
5310-01-593-5320INTERCHANGEABLE
WASHER,KEY
60225

Frequently Asked Questions

What is NSN 4320-01-165-0797?

NSN 4320-01-165-0797 is a Pump,rotary, manufactured by Steward Machine Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-165-0797?

NSN 4320-01-165-0797 has 6 cross-referenced part numbers: 60-225 PIECE 225A1 (Hardie-Tynes Co., Inc.), 3298995 (Hardie-Tynes Co., Inc.), 225A1 (Steward Machine Co Inc), 60-225 (Naval Ship Systems Command), 221-602 (Hardie-Tynes Co., Inc.) and 1 more.

What NSN replaces 4320-01-165-0797?

There are 5 known substitutes for 4320-01-165-0797: 5935-00-411-5206, 5961-01-147-8890, 4320-01-165-0833 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 225A1?

Key specifications for 225A1: Operating Speed at Rated Capacity: 1140.0 REVOLUTIONS PER MINUTE; Maximum Discharge Flow Rate: 10.0 GALLONS PER MINUTE; Media for Which Designed: OIL. 3 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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