PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

225-720Plunger,pump

Steward Machine Co Inc · NSN 4320-00-851-8006 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-851-8006 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-851-8006. Primary manufacturer part number: 225-720.
Features
  • Plunger,pump — FSC 4320
  • General Characteristics Item Description: STEEL,1.500 IN. LG,0.840 IN. OD OF HEAD,0.188 IN. H OF HEAD,1.312 IN. L OF STEM,0.275 IN. DIA OF STEM IN
  • 3 verified cross-references
  • Primary manufacturer: Steward Machine Co Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Plunger,pump, cataloged under National Stock Number 4320-00-851-8006, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-851-8006
Primary Part Number225-720
Item NamePlunger,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSteward Machine Co Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL,1.500 IN. LG,0.840 IN. OD OF HEAD,0.188 IN. H OF HEAD,1.312 IN. L OF STEM,0.275 IN. DIA OF STEM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6350-00-480-14104099 INTERCHANGEABLE
Buzzer
Cole Hersee Company
2835-00-962-260322572-0 INTERCHANGEABLE
Stator Assembly,com
Solar Turbines Incorporated Dba Solar Turbines Incorporated
1710-01-493-7478444290 INTERCHANGEABLE
Roll
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
6635-01-687-86852257-20 INTERCHANGEABLE
Camera,infrared,industrial
Milwaukee Electric Tool Corp Dba Milwaukee Electric Tools
Cross-Reference Index
Part NumberManufacturer
225-720 Hardie-Tynes Co., Inc. (USA)
225-720 PRIMARY Steward Machine Co Inc (USA)
213-3-786 Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa (USA)
Related Parts
6350-00-480-1410INTERCHANGEABLE
BUZZER
4099
2835-00-962-2603INTERCHANGEABLE
STATOR ASSEMBLY,COM
22572-0
1710-01-493-7478INTERCHANGEABLE
ROLL
444290
6635-01-687-8685INTERCHANGEABLE
CAMERA,INFRARED,INDUSTRIAL
2257-20

Frequently Asked Questions

What is NSN 4320-00-851-8006?

NSN 4320-00-851-8006 is a Plunger,pump, manufactured by Steward Machine Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-851-8006?

NSN 4320-00-851-8006 has 3 cross-referenced part numbers: 225-720 (Hardie-Tynes Co., Inc.), 225-720 (Steward Machine Co Inc), 213-3-786 (Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa).

What NSN replaces 4320-00-851-8006?

There are 4 known substitutes for 4320-00-851-8006: 6350-00-480-1410, 2835-00-962-2603, 1710-01-493-7478 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 225-720?

Key specifications for 225-720: General Characteristics Item Description: STEEL,1.500 IN. LG,0.840 IN. OD OF HEAD,0.188 IN. H OF HEAD,1.312 IN. L OF STEM,0.275 IN. DIA OF STEM IN. 1 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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