PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C144ARing,wearing

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-289-5965 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-289-5965 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-289-5965. Primary manufacturer part number: C144A.
Features
  • Ring,wearing — FSC 4320
  • Material: COPPER ALLOY
  • Surface Finish: 125.0 MICROINCHES ALL SURFACES
  • Corner Shape: SQUARE ALL CORNERS
  • Body Style: PLAIN
  • Body Outside Diameter: 7.000 INCHES MINIMUM AND 7.001 INCHES MAXIMUM IN
  • Body Inside Diameter: 6.485 INCHES MINIMUM AND 6.487 INCHES MAXIMUM IN
  • 3 verified cross-references
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-289-5965, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-289-5965
Primary Part NumberC144A
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
MaterialCOPPER ALLOY
Surface Finish125.0 MICROINCHES ALL SURFACES
Corner ShapeSQUARE ALL CORNERS
Body StylePLAIN
Body Outside Diameter7.000 INCHES MINIMUM AND 7.001 INCHES MAXIMUM IN
Body Inside Diameter6.485 INCHES MINIMUM AND 6.487 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-155-738272-6970-801 INTERCHANGEABLE
Bearing,roller,cylindrical
Fairbanks Morse, Llc
4820-00-221-5633R400-3/8 INTERCHANGEABLE
Valve,float
Robert Manufacturing Company Inc
4820-00-269-7064R400-1/2 INTERCHANGEABLE
Valve,float
Robert Manufacturing Company Inc
6140-00-921-3670C18.2M 1.2K4 INTERCHANGEABLE
Battery,storage
Sae International Dba Sae International
4820-01-077-3948R400-1 INTERCHANGEABLE
Valve,float
Robert Manufacturing Company Inc
6350-01-243-0588SPIIM INTERCHANGEABLE
Alarm,personal Distress
Grace Industries, Inc.
5945-01-282-7201R400 INTERCHANGEABLE
Relay,electromagnetic
Psg Controls, Inc.
6130-01-462-5927121834-001 INTERCHANGEABLE
Power Supply
Marathonnorco Aerospace, Inc. Dba Christie Electric
7035-01-592-6912R400 INTERCHANGEABLE
Remote Control,instrument-Equipm
Logitech Inc
1270-01-627-9036R400 INTERCHANGEABLE
Receiver-Transmitter,laser
Logitech Inc.
Cross-Reference Index
Part NumberManufacturer
R-400 PC.7 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R400 Circor Naval Solutions Llc Dba Warren Pumps (USA)
C144A PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3110-00-155-7382INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
72-6970-801
4820-00-221-5633INTERCHANGEABLE
VALVE,FLOAT
R400-3/8
4820-00-269-7064INTERCHANGEABLE
VALVE,FLOAT
R400-1/2
6140-00-921-3670INTERCHANGEABLE
BATTERY,STORAGE
C18.2M 1.2K4
4820-01-077-3948INTERCHANGEABLE
VALVE,FLOAT
R400-1
6350-01-243-0588INTERCHANGEABLE
ALARM,PERSONAL DISTRESS
SPIIM
5945-01-282-7201INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
R400
6130-01-462-5927INTERCHANGEABLE
POWER SUPPLY
121834-001
7035-01-592-6912INTERCHANGEABLE
REMOTE CONTROL,INSTRUMENT-EQUIPM
R400
1270-01-627-9036INTERCHANGEABLE
RECEIVER-TRANSMITTER,LASER
R400
5895-01-653-4181INTERCHANGEABLE
SELECTOR,RECEIVER SIGNAL
R400
6665-01-693-8421INTERCHANGEABLE
RADIACMETER
R400

Frequently Asked Questions

What is NSN 4320-00-289-5965?

NSN 4320-00-289-5965 is a Ring,wearing, 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 4320-00-289-5965?

NSN 4320-00-289-5965 has 3 cross-referenced part numbers: R-400 PC.7 (Circor Naval Solutions Llc Dba Warren Pumps), R400 (Circor Naval Solutions Llc Dba Warren Pumps), C144A (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-289-5965?

There are 12 known substitutes for 4320-00-289-5965: 3110-00-155-7382, 4820-00-221-5633, 4820-00-269-7064 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C144A?

Key specifications for C144A: Material: COPPER ALLOY; Surface Finish: 125.0 MICROINCHES ALL SURFACES; Corner Shape: SQUARE ALL CORNERS; Body Style: PLAIN. 7 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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