PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78039Ring,piston

Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp · NSN 4310-00-592-0416 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-592-0416 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-592-0416. Primary manufacturer part number: 78039.
Features
  • Ring,piston — FSC 4310
  • 2 verified cross-references
  • Primary manufacturer: Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,piston, cataloged under National Stock Number 4310-00-592-0416, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,piston
FSC / FSG4310 — No Item Name Available (FSG 43)
ManufacturersWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (CAGE 82722); Dresser Industries Inc Leroi Div (CAGE 35301)
Technical Specifications
ParameterValue
NSN4310-00-592-0416
Primary Part Number78039
Item NameRing,piston
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerWestinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-156-481510042 INTERCHANGEABLE
Bearing,ball,annular
Black and Decker Us Inc
3110-00-198-0272 INTERCHANGEABLE
Bearing,ball,annular
4710-01-147-8026 INTERCHANGEABLE
Tube Assembly,metal
7240-01-568-9717 INTERCHANGEABLE
Funnel
7240-01-574-3153 INTERCHANGEABLE
Funnel
9999-01-690-460978039 INTERCHANGEABLE
Seal,drain
Williams International Co., L.l.c.
Cross-Reference Index
Part NumberManufacturer
78039 PRIMARY Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp (USA)
H18-365 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
3110-00-156-4815INTERCHANGEABLE
BEARING,BALL,ANNULAR
10042
3110-00-198-0272INTERCHANGEABLE
BEARING,BALL,ANNULAR
4710-01-147-8026INTERCHANGEABLE
TUBE ASSEMBLY,METAL
7240-01-568-9717INTERCHANGEABLE
FUNNEL
7240-01-574-3153INTERCHANGEABLE
FUNNEL
9999-01-690-4609INTERCHANGEABLE
SEAL,DRAIN
78039

Frequently Asked Questions

What is NSN 4310-00-592-0416?

NSN 4310-00-592-0416 is a Ring,piston, manufactured by Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-592-0416?

NSN 4310-00-592-0416 has 2 cross-referenced part numbers: 78039 (Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp), H18-365 (Dresser Industries Inc Leroi Div).

What NSN replaces 4310-00-592-0416?

There are 6 known substitutes for 4310-00-592-0416: 3110-00-156-4815, 3110-00-198-0272, 4710-01-147-8026 and 3 more. Verify interchangeability with system specifications before substitution.

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