PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

237S8BAX1ASleeve,shaft,pump

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-363-5628 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-363-5628 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-363-5628. Primary manufacturer part number: 237S8BAX1A.
Features
  • Sleeve,shaft,pump — FSC 4320
  • Keyway Dimension: 0.3760 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN
  • Corner Shape: CHAMFERED INSIDE RIGHT CORNER
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES, INTERIOR FLANGE(S) NOT LOCATED AT EITHER END
  • Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Keyway Dimension: 1.5625 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
  • Interior Flange Width: 0.6100 INCHES NOMINAL IN
  • Interior Flange Left End to Centerline Distance: 4.1175 INCHES NOMINAL IN
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Nickel Alloy K-500 Overall construction
General Description

The Sleeve,shaft,pump, cataloged under National Stock Number 4320-00-363-5628, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-363-5628
Primary Part Number237S8BAX1A
Item NameSleeve,shaft,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusCANCELLED
Keyway Dimension0.3760 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN
Corner ShapeCHAMFERED INSIDE RIGHT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES, INTERIOR FLANGE(S) NOT LOCATED AT EITHER END
Material Document and ClassificationQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Keyway Dimension1.5625 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN
Interior Flange Width0.6100 INCHES NOMINAL IN
Interior Flange Left End to Centerline Distance4.1175 INCHES NOMINAL IN
Body Inside Diameter2.4375 INCHES NOMINAL IN
Interior Flange Hole Diameter2.3750 INCHES NOMINAL IN
Body Outside Diameter3.3710 INCHES NOMINAL IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
MaterialNICKEL ALLOY K-500 OVERALL
Keyway Dimension0.4375 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1370-00-134-0999 INTERCHANGEABLE
Shear Assembly
5340-00-435-8636CC0609 INTERCHANGEABLE
Clamp,loop
Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co
2915-00-808-768611032 INTERCHANGEABLE
Value,fuel
Eaton Aerospace Llc
5999-00-929-4963 INTERCHANGEABLE
Wire Mesh,knitted
4820-01-031-324120233 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3010-01-155-419011032 INTERCHANGEABLE
Coupling,shaft,rigid
Am General Llc
5360-01-200-3739 INTERCHANGEABLE
Spring,helical,compression
3460-01-203-272611032 INTERCHANGEABLE
Starter Pilot
Hougen Manufacturing, Inc
6160-01-280-040711032 INTERCHANGEABLE
Retainer,battery
Sullair Corp
5930-01-300-8755C100-120 INTERCHANGEABLE
Switch,thermostatic
United Electric Controls Company
Cross-Reference Index
Part NumberManufacturer
CS-4320-0442/10728-D-18 Onodi Tool & Engineering Co (USA)
D-237S8BAX1-A Classic Mfg (USA)
10728-D-18 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
237S8BAX1A Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Y237S8BAX1 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
D237S8BAX1A Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
10728-D-18 Calabrese & Sons, Inc. (USA)
237S8BAX1A PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Y248982PC8B Ingersoll Rand Co (USA)
D237S8BAX1A Northeast Fluid Power Co Inc (USA)
DA116-2 Dolphin Machine, Llc (USA)
10728-D-18 Acrodyne Mfg. Co (USA)
11032 Rps-Fl, Inc. Dba Rps Inc (USA)
Related Parts
1370-00-134-0999INTERCHANGEABLE
SHEAR ASSEMBLY
5340-00-435-8636INTERCHANGEABLE
CLAMP,LOOP
CC0609
2915-00-808-7686INTERCHANGEABLE
VALUE,FUEL
11032
5999-00-929-4963INTERCHANGEABLE
WIRE MESH,KNITTED
4820-01-031-3241INTERCHANGEABLE
VALVE,SAFETY RELIEF
20233
3010-01-155-4190INTERCHANGEABLE
COUPLING,SHAFT,RIGID
11032
5360-01-200-3739INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3460-01-203-2726INTERCHANGEABLE
STARTER PILOT
11032
6160-01-280-0407INTERCHANGEABLE
RETAINER,BATTERY
11032
5930-01-300-8755INTERCHANGEABLE
SWITCH,THERMOSTATIC
C100-120
5325-01-424-8409INTERCHANGEABLE
RING,RETAINING
11032
5998-01-458-8051INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
906-11032-1

Frequently Asked Questions

What is NSN 4320-00-363-5628?

NSN 4320-00-363-5628 is a Sleeve,shaft,pump, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-363-5628?

NSN 4320-00-363-5628 has 13 cross-referenced part numbers: CS-4320-0442/10728-D-18 (Onodi Tool & Engineering Co), D-237S8BAX1-A (Classic Mfg), 10728-D-18 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 237S8BAX1A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), Y237S8BAX1 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 8 more.

What NSN replaces 4320-00-363-5628?

There are 12 known substitutes for 4320-00-363-5628: 1370-00-134-0999, 5340-00-435-8636, 2915-00-808-7686 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 237S8BAX1A?

Key specifications for 237S8BAX1A: Keyway Dimension: 0.3760 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN; Corner Shape: CHAMFERED INSIDE RIGHT CORNER; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES, INTERIOR FLANGE(S) NOT LOCATED AT EITHER END; Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-363-5628 still in active supply?

NSN 4320-00-363-5628 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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