PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22140Ring,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-981-0637 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-981-0637 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-981-0637. Primary manufacturer part number: 22140.
Features
  • Ring,wearing — FSC 4320
  • Material: COPPER ALLOY
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
  • Chamfer Angle: 15.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER
  • Body Outside Diameter: 4.250 INCHES NOMINAL IN
  • Body Style: PLAIN
  • Corner Shape: SQUARE INSIDE LEFT CORNER
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-981-0637, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4320-00-981-0637
Primary Part Number22140
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusCANCELLED
MaterialCOPPER ALLOY
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Chamfer Angle15.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER
Body Outside Diameter4.250 INCHES NOMINAL IN
Body StylePLAIN
Corner ShapeSQUARE INSIDE LEFT CORNER
Body Inside Diameter3.750 INCHES NOMINAL IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Chamfer Length0.125 INCHES NOMINAL OUTSIDE RIGHT CORNER IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4720-00-107-7706 INTERCHANGEABLE
Hose,nonmetallic
5910-00-356-0160 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
4720-00-554-80512652-40 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
6660-00-572-214022140 INTERCHANGEABLE
Roller,frictional,disc
Arco Engineering Inc
5995-00-791-5499RE49C605 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Naval Ship Systems Command
5999-01-040-3090205283-1 INTERCHANGEABLE
Cap,electrical
Te Connectivity Corporation
6685-01-225-4428 INTERCHANGEABLE
Gage,assembly
5331-01-258-91481000459-P19 INTERCHANGEABLE
O-Ring
Tld Ace Corp Div Tld Ace
5950-01-259-3312221-40 INTERCHANGEABLE
Transformer,power Autotransforme
Staco Energy Products Co Dba Staco Energy Products Co
4810-01-355-7796 INTERCHANGEABLE
Valve,linear,directional Control
Cross-Reference Index
Part NumberManufacturer
22140 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
22140 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
4720-00-107-7706INTERCHANGEABLE
HOSE,NONMETALLIC
5910-00-356-0160INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
4720-00-554-8051INTERCHANGEABLE
HOSE,NONMETALLIC
2652-40
6660-00-572-2140INTERCHANGEABLE
ROLLER,FRICTIONAL,DISC
22140
5995-00-791-5499INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
RE49C605
5999-01-040-3090INTERCHANGEABLE
CAP,ELECTRICAL
205283-1
6685-01-225-4428INTERCHANGEABLE
GAGE,ASSEMBLY
5331-01-258-9148INTERCHANGEABLE
O-RING
1000459-P19
5950-01-259-3312INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
221-40
4810-01-355-7796INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
5940-01-363-2066INTERCHANGEABLE
TERMINAL BOARD
22-140
5120-01-569-4129INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
22140

Frequently Asked Questions

What is NSN 4320-00-981-0637?

NSN 4320-00-981-0637 is a Ring,wearing, 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 4320-00-981-0637?

NSN 4320-00-981-0637 has 2 cross-referenced part numbers: 22140 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 22140 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).

What NSN replaces 4320-00-981-0637?

There are 12 known substitutes for 4320-00-981-0637: 4720-00-107-7706, 5910-00-356-0160, 4720-00-554-8051 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22140?

Key specifications for 22140: Material: COPPER ALLOY; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER; Chamfer Angle: 15.0 DEGREES NOMINAL OUTSIDE RIGHT CORNER. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-981-0637 still in active supply?

NSN 4320-00-981-0637 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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