PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

000181Piston,pump

Neptune Chemical Pump Co Div of R a Industries Inc · NSN 4320-01-487-4330 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-487-4330 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-487-4330. Primary manufacturer part number: 000181.
Features
  • Piston,pump — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Neptune Chemical Pump Co Div of R a Industries Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Piston,pump, cataloged under National Stock Number 4320-01-487-4330, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Neptune Chemical Pump Co Div of R a Industries Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-487-4330
Primary Part Number000181
Item NamePiston,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerNeptune Chemical Pump Co Div of R a Industries Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5307-01-190-5855 INTERCHANGEABLE
Stud,continuous Thread
6515-01-473-336610000 INTERCHANGEABLE
Wound Cleansing Dev
Ethox International Inc.
5985-01-721-758100018-1 INTERCHANGEABLE
Bag,mast Equipment
Naval Air Warfare Ctr Aircraft Div
Cross-Reference Index
Part NumberManufacturer
000181 PRIMARY Neptune Chemical Pump Co Div of R a Industries Inc (USA)
Related Parts
5307-01-190-5855INTERCHANGEABLE
STUD,CONTINUOUS THREAD
6515-01-473-3366INTERCHANGEABLE
WOUND CLEANSING DEV
10000
5985-01-721-7581INTERCHANGEABLE
BAG,MAST EQUIPMENT
00018-1

Frequently Asked Questions

What is NSN 4320-01-487-4330?

NSN 4320-01-487-4330 is a Piston,pump, manufactured by Neptune Chemical Pump Co Div of R a Industries Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-487-4330?

NSN 4320-01-487-4330 has 1 cross-referenced part number: 000181 (Neptune Chemical Pump Co Div of R a Industries Inc).

What NSN replaces 4320-01-487-4330?

There are 3 known substitutes for 4320-01-487-4330: 5307-01-190-5855, 6515-01-473-3366, 5985-01-721-7581. Verify interchangeability with system specifications before substitution.

What are the specifications of 000181?

Key specifications for 000181: Part Name Assigned by Controlling Agency: PISTON 0.500 INCH 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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