PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1AA1972Parts Kit,liquid Dispensing Pump

Ashland Inc. Dba Ashland Water Technologies · NSN 4320-01-525-3920 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-525-3920 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-525-3920. Primary manufacturer part number: 1AA1972.
Features
  • Parts Kit,liquid Dispensing Pump — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Ashland Inc. Dba Ashland Water Technologies
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Parts Kit,liquid Dispensing Pump, cataloged under National Stock Number 4320-01-525-3920, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Ashland Inc. Dba Ashland Water Technologies. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-525-3920
Primary Part Number1AA1972
Item NameParts Kit,liquid Dispensing Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAshland Inc. Dba Ashland Water Technologies
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-599-6693100173-2 INTERCHANGEABLE
Packing,preformed
Meggitt North Hollywood Inc
5305-01-564-292012759-00755 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
1001732 Prominent Fluid Controls Inc (USA)
1AA1972 PRIMARY Ashland Inc. Dba Ashland Water Technologies (USA)
Related Parts
5330-00-599-6693INTERCHANGEABLE
PACKING,PREFORMED
100173-2
5305-01-564-2920INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
12759-00755

Frequently Asked Questions

What is NSN 4320-01-525-3920?

NSN 4320-01-525-3920 is a Parts Kit,liquid Dispensing Pump, manufactured by Ashland Inc. Dba Ashland Water Technologies, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-525-3920?

NSN 4320-01-525-3920 has 2 cross-referenced part numbers: 1001732 (Prominent Fluid Controls Inc), 1AA1972 (Ashland Inc. Dba Ashland Water Technologies).

What NSN replaces 4320-01-525-3920?

There are 2 known substitutes for 4320-01-525-3920: 5330-00-599-6693, 5305-01-564-2920. Verify interchangeability with system specifications before substitution.

What are the specifications of 1AA1972?

Key specifications for 1AA1972: Special Features: PROMINENT SPARE PARTS KIT P/N 1001732, THE KIT INCLUDES, P/N 104233 CONNECTOR KIT 6MM SS, P/N 809418 DISCHARGE VALVE SET 6MM SST, P/N 1000247 DIAPHRAM TYPE 1005 (1605), P/N 809419 SUCTION VALVE SET 6MM SST, P/N 404201 4 VALVE BALLS, P/N 438907 12 PTFE SEALS, THIS KIT IS USED WITH A BT5A1605SST SOLENOID DOSING PUMP MM. 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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