PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

512-6408364Gear Operator,valve

Naval Sea Systems Command · NSN 4820-01-444-0992 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-444-0992 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-444-0992. Primary manufacturer part number: 512-6408364.
Features
  • Gear Operator,valve — FSC 4820
  • Material: STEEL
  • Gear Type: WORM
  • Valve Type for Which Designed: VENT
  • 3 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Power transmission and speed reduction
  • Rotary motion transfer
General Description

The Gear Operator,valve, cataloged under National Stock Number 4820-01-444-0992, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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.

Technical Specifications
ParameterValue
NSN4820-01-444-0992
Primary Part Number512-6408364
Item NameGear Operator,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialSTEEL
Gear TypeWORM
Valve Type for Which DesignedVENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3010-00-388-08314840-SF12-3 INTERCHANGEABLE
Coupling,shaft,rigid
B.w. Elliott Manufacturing Co., Llc
3040-01-443-32608671-103X9FT INTERCHANGEABLE
Shaft Assembly,flexible
B.w. Elliott Manufacturing Co., Llc
Cross-Reference Index
Part NumberManufacturer
6408364 Naval Sea Systems Command (USA)
512-6408364 PRIMARY Naval Sea Systems Command (USA)
512-6408364 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Related Parts
3010-00-388-0831INTERCHANGEABLE
COUPLING,SHAFT,RIGID
4840-SF12-3
3040-01-443-3260INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
8671-103X9FT

Frequently Asked Questions

What is NSN 4820-01-444-0992?

NSN 4820-01-444-0992 is a Gear Operator,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-444-0992?

NSN 4820-01-444-0992 has 3 cross-referenced part numbers: 6408364 (Naval Sea Systems Command), 512-6408364 (Naval Sea Systems Command), 512-6408364 (Huntington Ingalls Inc Div Newport News Shipbuilding).

What NSN replaces 4820-01-444-0992?

There are 2 known substitutes for 4820-01-444-0992: 3010-00-388-0831, 3040-01-443-3260. Verify interchangeability with system specifications before substitution.

What are the specifications of 512-6408364?

Key specifications for 512-6408364: Material: STEEL; Gear Type: WORM; Valve Type for Which Designed: VENT; End Item Identification: SHIP, OHIO CLASS SSN (TRIDENT). 4 total characteristics are documented in the Federal Logistics Information System.

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