PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BC4Cover,centrifugal Pump

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-01-388-6903 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-388-6903 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-388-6903. Primary manufacturer part number: BC4.
Features
  • Cover,centrifugal Pump — FSC 4320
  • General Characteristics Item Description: MATERIAL IS CAS GUN METAL
  • 3 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Cover,centrifugal Pump, cataloged under National Stock Number 4320-01-388-6903, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-388-6903
Primary Part NumberBC4
Item NameCover,centrifugal Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
General Characteristics Item DescriptionMATERIAL IS CAS GUN METAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5999-00-175-8159539603-1 INTERCHANGEABLE
Contact,electrical
Raytheon Company Dba Raytheon
2940-00-354-0919148244 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
5660-01-005-0680 INTERCHANGEABLE
Cap,post
4320-01-250-4208 INTERCHANGEABLE
Pump,centrifugal
5985-01-330-6151BC-4 INTERCHANGEABLE
Coupler,transmission Line
Smart Machines, Inc. Dba Barker and Williamson
4730-01-388-6172AW3 INTERCHANGEABLE
Nipple,special
Circor Naval Solutions Llc Dba Warren Pumps
4730-01-389-7761517-2299514 PC2.3.4 INTERCHANGEABLE
Plug,pipe
Puget Sound Naval Shipyard and Intermediate Maintence Facility
5660-01-681-8149 INTERCHANGEABLE
Cap,post
Cross-Reference Index
Part NumberManufacturer
517-2299514 Puget Sound Naval Shipyard and Intermediate Maintence Facility (USA)
BC4 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
517-2299514 PIECE 1.4 Puget Sound Naval Shipyard and Intermediate Maintence Facility (USA)
Related Parts
5999-00-175-8159INTERCHANGEABLE
CONTACT,ELECTRICAL
539603-1
2940-00-354-0919INTERCHANGEABLE
FILTER ELEMENT,FLUID
148244
5660-01-005-0680INTERCHANGEABLE
CAP,POST
4320-01-250-4208INTERCHANGEABLE
PUMP,CENTRIFUGAL
5985-01-330-6151INTERCHANGEABLE
COUPLER,TRANSMISSION LINE
BC-4
4730-01-388-6172INTERCHANGEABLE
NIPPLE,SPECIAL
AW3
4730-01-389-7761INTERCHANGEABLE
PLUG,PIPE
517-2299514 PC2.3.4
5660-01-681-8149INTERCHANGEABLE
CAP,POST

Frequently Asked Questions

What is NSN 4320-01-388-6903?

NSN 4320-01-388-6903 is a Cover,centrifugal Pump, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-388-6903?

NSN 4320-01-388-6903 has 3 cross-referenced part numbers: 517-2299514 (Puget Sound Naval Shipyard and Intermediate Maintence Facility), BC4 (Circor Naval Solutions Llc Dba Warren Pumps), 517-2299514 PIECE 1.4 (Puget Sound Naval Shipyard and Intermediate Maintence Facility).

What NSN replaces 4320-01-388-6903?

There are 8 known substitutes for 4320-01-388-6903: 5999-00-175-8159, 2940-00-354-0919, 5660-01-005-0680 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BC4?

Key specifications for BC4: Special Features: LOWER HEAD COVER, IMPELLER END; General Characteristics Item Description: MATERIAL IS CAS GUN METAL; End Item Identification: TYPE 5-CVE-16 PUMP. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com