PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255023-08Ring,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-218-3465 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-218-3465 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-3465. Primary manufacturer part number: 255023-08.
Features
  • Ring,wearing — FSC 4320
  • Body Outside Diameter: 8.137 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
  • Surface Finish: 125.0 MICROINCHES ALL SURFACES
  • Material: COPPER ALLOY
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
  • Body Style: PLAIN
  • Body Inside Diameter: 7.500 INCHES MINIMUM AND 7.501 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-218-3465, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-218-3465
Primary Part Number255023-08
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Body Outside Diameter8.137 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
Surface Finish125.0 MICROINCHES ALL SURFACES
MaterialCOPPER ALLOY
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE
Body StylePLAIN
Body Inside Diameter7.500 INCHES MINIMUM AND 7.501 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5935-00-528-1181 INTERCHANGEABLE
Connector,plug,electrical
5945-00-937-5006719098-044 INTERCHANGEABLE
Relay,hybrid
Raytheon Company Div Rmd Strategic
4720-01-132-1670 INTERCHANGEABLE
Hose Set,nonmetallic
3220-01-172-541110983 INTERCHANGEABLE
Brush,wire,mitering and Cutoff S
Doall Baltimore Company
5305-01-506-057410983 INTERCHANGEABLE
Screw,cap,socket Head
North American Controls Inc Dba North American Controls Inc
4720-01-663-974010983 INTERCHANGEABLE
Hose Assembly,nonmetallic
Gatr Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
SL-5023 PC55 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
CS255023-8 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
255023-8 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
581P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
255023-08 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6148PC55 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
255023-08 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
10983 Rps-Fl, Inc. Dba Rps Inc (USA)
Related Parts
5935-00-528-1181INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5945-00-937-5006INTERCHANGEABLE
RELAY,HYBRID
719098-044
4720-01-132-1670INTERCHANGEABLE
HOSE SET,NONMETALLIC
3220-01-172-5411INTERCHANGEABLE
BRUSH,WIRE,MITERING AND CUTOFF S
10983
5305-01-506-0574INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
10983
4720-01-663-9740INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
10983

Frequently Asked Questions

What is NSN 4320-00-218-3465?

NSN 4320-00-218-3465 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 4320-00-218-3465?

NSN 4320-00-218-3465 has 8 cross-referenced part numbers: SL-5023 PC55 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), CS255023-8 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 255023-8 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 581P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 255023-08 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 3 more.

What NSN replaces 4320-00-218-3465?

There are 6 known substitutes for 4320-00-218-3465: 5935-00-528-1181, 5945-00-937-5006, 4720-01-132-1670 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 255023-08?

Key specifications for 255023-08: Body Outside Diameter: 8.137 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Surface Finish: 125.0 MICROINCHES ALL SURFACES; Material: COPPER ALLOY. 8 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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