PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H15621Retainer,pump Assy

Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. · NSN 4320-01-194-2704 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-194-2704 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-194-2704. Primary manufacturer part number: H15621.
Features
  • Retainer,pump Assy — FSC 4320
  • 4 verified cross-references
  • Primary manufacturer: Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Retainer,pump Assy, cataloged under National Stock Number 4320-01-194-2704, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRetainer,pump Assy
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersHowden Fluid Systems (CAGE 33654); Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (CAGE 58163); Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (CAGE 62228)
Technical Specifications
ParameterValue
NSN4320-01-194-2704
Primary Part NumberH15621
Item NameRetainer,pump Assy
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerMeggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-807-7105 INTERCHANGEABLE
Packing,preformed
2990-00-865-2330T-4748 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3110-00-933-3807A2345 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5330-00-969-284915621 INTERCHANGEABLE
Gasket
Itt Marlow a Unit of Itt Pumps and Compressors Div
4730-01-166-8315P57176 INTERCHANGEABLE
Coupling,tube
Lexair Inc
5310-01-226-30331562-1 INTERCHANGEABLE
Washer
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
5315-01-522-00581562-1 INTERCHANGEABLE
Pin,straight,headless
Tate Andale, Llc
6680-01-528-6912FCS-8-1 INTERCHANGEABLE
Transmitter,rate of Flow
Aerospace Control Products, Inc. Dba Aerospace Control Products Inc
6545-01-581-4120UA 905C INTERCHANGEABLE
Ves 50 Pt Sm-2010
Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
Cross-Reference Index
Part NumberManufacturer
15621 Howden Fluid Systems (USA)
H15621 PRIMARY Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
H15621 PRIMARY Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA)
15621 Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
Related Parts
5330-00-807-7105INTERCHANGEABLE
PACKING,PREFORMED
2990-00-865-2330INTERCHANGEABLE
MUFFLER,EXHAUST
T-4748
3110-00-933-3807INTERCHANGEABLE
BEARING,BALL,THRUST
A2345
5330-00-969-2849INTERCHANGEABLE
GASKET
15621
4730-01-166-8315INTERCHANGEABLE
COUPLING,TUBE
P57176
5310-01-226-3033INTERCHANGEABLE
WASHER
1562-1
5315-01-522-0058INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
1562-1
6680-01-528-6912INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
FCS-8-1
6545-01-581-4120INTERCHANGEABLE
VES 50 PT SM-2010
UA 905C

Frequently Asked Questions

What is NSN 4320-01-194-2704?

NSN 4320-01-194-2704 is a Retainer,pump Assy, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-194-2704?

NSN 4320-01-194-2704 has 4 cross-referenced part numbers: 15621 (Howden Fluid Systems), H15621 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), H15621 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc), 15621 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).

What NSN replaces 4320-01-194-2704?

There are 9 known substitutes for 4320-01-194-2704: 5330-00-807-7105, 2990-00-865-2330, 3110-00-933-3807 and 6 more. Verify interchangeability with system specifications before substitution.

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