PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1H622DPump,reciprocating

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 4320-00-703-8889 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-703-8889 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-703-8889. Primary manufacturer part number: 1H622D.
Features
  • Pump,reciprocating — FSC 4320
  • 3 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,reciprocating, cataloged under National Stock Number 4320-00-703-8889, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. This item has 3 commercial cross-references from 3 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,reciprocating
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersOntic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Aeronautical Standards Group Dept of Navy and Air Force (CAGE 88044); Donallco Inc (CAGE 56705)
Technical Specifications
ParameterValue
NSN4320-00-703-8889
Primary Part Number1H622D
Item NamePump,reciprocating
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4320-00-412-36393-1158-18 INTERCHANGEABLE
Pump,reciprocating
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4320-00-540-3938 INTERCHANGEABLE
Pump,reciprocating
Cross-Reference Index
Part NumberManufacturer
1H622D PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
AN6201-1 Aeronautical Standards Group Dept of Navy and Air Force (USA)
1H622D Donallco Inc (USA)
Related Parts
4320-00-412-3639INTERCHANGEABLE
PUMP,RECIPROCATING
3-1158-18
4320-00-540-3938INTERCHANGEABLE
PUMP,RECIPROCATING

Frequently Asked Questions

What is NSN 4320-00-703-8889?

NSN 4320-00-703-8889 is a Pump,reciprocating, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-703-8889?

NSN 4320-00-703-8889 has 3 cross-referenced part numbers: 1H622D (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), AN6201-1 (Aeronautical Standards Group Dept of Navy and Air Force), 1H622D (Donallco Inc).

What NSN replaces 4320-00-703-8889?

There are 2 known substitutes for 4320-00-703-8889: 4320-00-412-3639, 4320-00-540-3938. Verify interchangeability with system specifications before substitution.

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