PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255265-6Ring,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-398-7758 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-7758 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-7758. Primary manufacturer part number: 255265-6.
Features
  • Ring,wearing — FSC 4320
  • Body Outside Diameter: 4.502 INCHES NOMINAL IN
  • Body Inside Diameter: 3.970 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Corner Shape: SQUARE ALL CORNERS
  • Body Style: PLAIN
  • 7 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-398-7758, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, 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
NSN4320-00-398-7758
Primary Part Number255265-6
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Body Outside Diameter4.502 INCHES NOMINAL IN
Body Inside Diameter3.970 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Corner ShapeSQUARE ALL CORNERS
Body StylePLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-07542984 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
4730-00-118-5177113-3 INTERCHANGEABLE
Elbow,pipe to Tube
Crane Carrier Company, Llc
5977-00-214-049210570 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5315-00-230-9740 INTERCHANGEABLE
Cotter Pin Assortment
5133-00-236-4069 INTERCHANGEABLE
Drill,twist
5950-00-842-430991431 INTERCHANGEABLE
Saturable Reactor
Magnetek Inc Lighting Products Group
5999-00-944-8044 INTERCHANGEABLE
Wire Mesh,knitted
5340-01-004-00722552656 INTERCHANGEABLE
Holder,spring
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5310-01-137-2200991 2665 INTERCHANGEABLE
Nut,plain,hexagon
Hiab Usa Inc
4820-01-312-417310570 INTERCHANGEABLE
Valve Assembly,manifold
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
Cross-Reference Index
Part NumberManufacturer
255265-6 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
255265-6 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL5265PC35 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
10570 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
367P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5265PC35 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
367P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
3110-00-100-0754INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2984
4730-00-118-5177INTERCHANGEABLE
ELBOW,PIPE TO TUBE
113-3
5977-00-214-0492INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10570
5315-00-230-9740INTERCHANGEABLE
COTTER PIN ASSORTMENT
5133-00-236-4069INTERCHANGEABLE
DRILL,TWIST
5950-00-842-4309INTERCHANGEABLE
SATURABLE REACTOR
91431
5999-00-944-8044INTERCHANGEABLE
WIRE MESH,KNITTED
5340-01-004-0072INTERCHANGEABLE
HOLDER,SPRING
2552656
5310-01-137-2200INTERCHANGEABLE
NUT,PLAIN,HEXAGON
991 2665
4820-01-312-4173INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
10570
6680-01-519-7420INTERCHANGEABLE
METER,FLOW RATE INDICATING
10570
6680-01-658-7567INTERCHANGEABLE
METER,IMPELLER TYPE,LIQUID
10570-1

Frequently Asked Questions

What is NSN 4320-00-398-7758?

NSN 4320-00-398-7758 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 4320-00-398-7758?

NSN 4320-00-398-7758 has 7 cross-referenced part numbers: 255265-6 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 255265-6 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5265PC35 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 10570 (Rps-Fl, Inc. Dba Rps Inc), 367P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 2 more.

What NSN replaces 4320-00-398-7758?

There are 12 known substitutes for 4320-00-398-7758: 3110-00-100-0754, 4730-00-118-5177, 5977-00-214-0492 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 255265-6?

Key specifications for 255265-6: Body Outside Diameter: 4.502 INCHES NOMINAL IN; Body Inside Diameter: 3.970 INCHES NOMINAL IN; Material: COPPER ALLOY; Corner Shape: SQUARE ALL CORNERS. 6 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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