PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

840028Pump Assembly,boost

Aai Corporation Div Mississippi Operations · NSN 4320-01-123-6993 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-123-6993 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-123-6993. Primary manufacturer part number: 840028.
Features
  • Pump Assembly,boost — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Aai Corporation Div Mississippi Operations
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Assembly,boost, cataloged under National Stock Number 4320-01-123-6993, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Aai Corporation Div Mississippi Operations. 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.

Catalog Facts
Item NamePump Assembly,boost
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersAai Corporation Div Mississippi Operations (CAGE 05172); Testek Llc Dba Testek Solutions (CAGE 06659)
Technical Specifications
ParameterValue
NSN4320-01-123-6993
Primary Part Number840028
Item NamePump Assembly,boost
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAai Corporation Div Mississippi Operations
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4320-00-518-1214840756 INTERCHANGEABLE
Trunnion
David Brown Hydraulics Inc Dba Hydreco
6210-00-810-7251840028 INTERCHANGEABLE
Light,indicator
Panelight Components Group, Llc Dba Panelight Components Group Llc
Cross-Reference Index
Part NumberManufacturer
840028 Aai Corporation Div Mississippi Operations (USA)
840028 Testek Llc Dba Testek Solutions (USA)
Related Parts
4320-00-518-1214INTERCHANGEABLE
TRUNNION
840756
6210-00-810-7251INTERCHANGEABLE
LIGHT,INDICATOR
840028

Frequently Asked Questions

What is NSN 4320-01-123-6993?

NSN 4320-01-123-6993 is a Pump Assembly,boost, manufactured by Aai Corporation Div Mississippi Operations, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-123-6993?

NSN 4320-01-123-6993 has 2 cross-referenced part numbers: 840028 (Aai Corporation Div Mississippi Operations), 840028 (Testek Llc Dba Testek Solutions).

What NSN replaces 4320-01-123-6993?

There are 2 known substitutes for 4320-01-123-6993: 4320-00-518-1214, 6210-00-810-7251. Verify interchangeability with system specifications before substitution.

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