PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300256Ring,wearing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-398-8182 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-8182 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-8182. Primary manufacturer part number: 300256.
Features
  • Ring,wearing — FSC 4320
  • 6 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-398-8182, 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. This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,wearing
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (CAGE 93232); Curtiss-Wright Electro-Mechanical Corporation Div Epd (CAGE 0UBG9)
Technical Specifications
ParameterValue
NSN4320-00-398-8182
Primary Part Number300256
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5910-00-689-9648912-4117-930 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4730-01-543-397578048-100 INTERCHANGEABLE
Adapter Assembly,valve
Drs Environmental Systems Inc
Cross-Reference Index
Part NumberManufacturer
SL6436PC86 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6439PC86 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
300256 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
1213P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
300256 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
1213P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
5910-00-689-9648INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
912-4117-930
4730-01-543-3975INTERCHANGEABLE
ADAPTER ASSEMBLY,VALVE
78048-100

Frequently Asked Questions

What is NSN 4320-00-398-8182?

NSN 4320-00-398-8182 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 4320-00-398-8182?

NSN 4320-00-398-8182 has 6 cross-referenced part numbers: SL6436PC86 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL6439PC86 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 300256 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 1213P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 300256 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 1 more.

What NSN replaces 4320-00-398-8182?

There are 2 known substitutes for 4320-00-398-8182: 5910-00-689-9648, 4730-01-543-3975. Verify interchangeability with system specifications before substitution.

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