PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TD-085/086Valve,ball

Huntington Ingalls Inc Div Newport News Shipbuilding · NSN 4820-01-731-3994 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-731-3994 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-731-3994. Primary manufacturer part number: TD-085/086.
Features
  • Valve,ball — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-731-3994, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. This item has 5 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 NameValve,ball
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHuntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689); Naval Inventory Control Point Mechanicsburg (CAGE 03950)
Technical Specifications
ParameterValue
NSN4820-01-731-3994
Primary Part NumberTD-085/086
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHuntington Ingalls Inc Div Newport News Shipbuilding
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6220-00-147-7064 INTERCHANGEABLE
Panel,indicating,light Transmitt
4820-01-227-2863 INTERCHANGEABLE
Valve,ball
Cross-Reference Index
Part NumberManufacturer
TD-085/086 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
TD-085/086L1 Naval Inventory Control Point Mechanicsburg (USA)
255593 ASSY RC Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
255593 ASSY RCL1 Naval Inventory Control Point Mechanicsburg (USA)
255593 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Related Parts
6220-00-147-7064INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
4820-01-227-2863INTERCHANGEABLE
VALVE,BALL

Frequently Asked Questions

What is NSN 4820-01-731-3994?

NSN 4820-01-731-3994 is a Valve,ball, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-731-3994?

NSN 4820-01-731-3994 has 5 cross-referenced part numbers: TD-085/086 (Huntington Ingalls Inc Div Newport News Shipbuilding), TD-085/086L1 (Naval Inventory Control Point Mechanicsburg), 255593 ASSY RC (Huntington Ingalls Inc Div Newport News Shipbuilding), 255593 ASSY RCL1 (Naval Inventory Control Point Mechanicsburg), 255593 (Huntington Ingalls Inc Div Newport News Shipbuilding).

What NSN replaces 4820-01-731-3994?

There are 2 known substitutes for 4820-01-731-3994: 6220-00-147-7064, 4820-01-227-2863. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com