PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1280PRing,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-218-3182 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-218-3182 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-3182. Primary manufacturer part number: 1280P.
Features
  • Ring,wearing — FSC 4320
  • Body Inside Diameter: 5.125 INCHES NOMINAL IN
  • Corner Radius: 0.500 INCHES NOMINAL INSIDE RIGHT CORNER IN
  • Corner Shape: SQUARE ALL CORNERS
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Smallest External Anchor Flange Radius: 2.844 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-218-3182, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-218-3182
Primary Part Number1280P
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Body Inside Diameter5.125 INCHES NOMINAL IN
Corner Radius0.500 INCHES NOMINAL INSIDE RIGHT CORNER IN
Corner ShapeSQUARE ALL CORNERS
Corner ShapeSQUARE INSIDE RIGHT CORNER
Smallest External Anchor Flange Radius2.844 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
End to Flange Distance0.500 INCHES NOMINAL IN
Internal Flange Width0.500 INCHES NOMINAL IN
Internal Flange Inside Diameter4.688 INCHES NOMINAL IN
Distance Below Centerline0.188 INCHES NOMINAL IN
Corner ShapeROUND OUTSIDE LEFT CORNER
Largest External Anchor Flange Radius3.000 INCHES NOMINAL IN
Center Flange Thickness0.375 INCHES NOMINAL IN
Body StyleEXTERNAL LOCKING FLANGE
Body Outside Diameter5.688 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-073-196310049564-2 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Us Army Aviation and Missile Command
5110-00-277-98081280P INTERCHANGEABLE
Punch,cutting,single Bow
General Tools Manufacturing Co., Llc.
6610-01-088-1590104380 INTERCHANGEABLE
Spheroid Assembly
Astronautics Corporation of America
Cross-Reference Index
Part NumberManufacturer
1280P PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
104380 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL5252PC53 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
145838 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
RW58950PC18A Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
1280P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5252PC53 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
104380 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Related Parts
5935-00-073-1963INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
10049564-2
5110-00-277-9808INTERCHANGEABLE
PUNCH,CUTTING,SINGLE BOW
1280P
6610-01-088-1590INTERCHANGEABLE
SPHEROID ASSEMBLY
104380

Frequently Asked Questions

What is NSN 4320-00-218-3182?

NSN 4320-00-218-3182 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-218-3182?

NSN 4320-00-218-3182 has 8 cross-referenced part numbers: 1280P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 104380 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5252PC53 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 145838 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), RW58950PC18A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 3 more.

What NSN replaces 4320-00-218-3182?

There are 3 known substitutes for 4320-00-218-3182: 5935-00-073-1963, 5110-00-277-9808, 6610-01-088-1590. Verify interchangeability with system specifications before substitution.

What are the specifications of 1280P?

Key specifications for 1280P: Body Inside Diameter: 5.125 INCHES NOMINAL IN; Corner Radius: 0.500 INCHES NOMINAL INSIDE RIGHT CORNER IN; Corner Shape: SQUARE ALL CORNERS; Corner Shape: SQUARE INSIDE RIGHT CORNER. 17 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