PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7743XValve Assembly,com

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4820-00-459-2711 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-459-2711 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-459-2711. Primary manufacturer part number: 7743X.
Features
  • Valve Assembly,com — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,com, cataloged under National Stock Number 4820-00-459-2711, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve Assembly,com
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (CAGE 49576)
Technical Specifications
ParameterValue
NSN4820-00-459-2711
Primary Part Number7743X
Item NameValve Assembly,com
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-198-1502A-3419-2 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
Cross-Reference Index
Part NumberManufacturer
7743X PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
3110-00-198-1502INTERCHANGEABLE
BEARING,BALL,THRUST
A-3419-2

Frequently Asked Questions

What is NSN 4820-00-459-2711?

NSN 4820-00-459-2711 is a Valve Assembly,com, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-459-2711?

NSN 4820-00-459-2711 has 1 cross-referenced part number: 7743X (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4820-00-459-2711?

There is 1 known substitute for 4820-00-459-2711: 3110-00-198-1502. Verify interchangeability with system specifications before substitution.

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