PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

174821Ring,casing

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-398-7737 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-7737 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-7737. Primary manufacturer part number: 174821.
Features
  • Ring,casing — 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,casing, cataloged under National Stock Number 4320-00-398-7737, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,casing
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
NSN4320-00-398-7737
Primary Part Number174821
Item NameRing,casing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-596-00001229M1313 INTERCHANGEABLE
Washer,spring Tension
Meritor Heavy Vehicle Systems, Llc
5330-01-359-6956174821 INTERCHANGEABLE
Seal,plain Encased
Applied Industrial Technologies, Inc. Dba Applied Industrial Technologies 0608
2010-01-365-0779174821 INTERCHANGEABLE
Propeller,marine
Brp Us Inc
5330-01-367-15241-748-21 INTERCHANGEABLE
Seal Ring,metal
Rexnord Industries, Llc Div Aerospace Solutions Downers Grove
Cross-Reference Index
Part NumberManufacturer
SL4291PC7A Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
174821 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL4292PC7A Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
174821 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
11696P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
11696P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
5310-00-596-0000INTERCHANGEABLE
WASHER,SPRING TENSION
1229M1313
5330-01-359-6956INTERCHANGEABLE
SEAL,PLAIN ENCASED
174821
2010-01-365-0779INTERCHANGEABLE
PROPELLER,MARINE
174821
5330-01-367-1524INTERCHANGEABLE
SEAL RING,METAL
1-748-21

Frequently Asked Questions

What is NSN 4320-00-398-7737?

NSN 4320-00-398-7737 is a Ring,casing, 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 4320-00-398-7737?

NSN 4320-00-398-7737 has 6 cross-referenced part numbers: SL4291PC7A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 174821 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL4292PC7A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 174821 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 11696P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 1 more.

What NSN replaces 4320-00-398-7737?

There are 4 known substitutes for 4320-00-398-7737: 5310-00-596-0000, 5330-01-359-6956, 2010-01-365-0779 and 1 more. Verify interchangeability with system specifications before substitution.

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