PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3400004Seal Assembly,shaft,spring Loade

Department of the Navy Naval Undersea Warfare Center New London Div · NSN 4320-01-651-6947 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-651-6947 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-651-6947. Primary manufacturer part number: 3400004.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • 4 verified cross-references
  • Primary manufacturer: Department of the Navy Naval Undersea Warfare Center New London Div
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-651-6947, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Department of the Navy Naval Undersea Warfare Center New London Div. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersLockheed Martin Sippican, Inc. Div Communication Division (CAGE 13030); Department of the Navy Naval Undersea Warfare Center New London Div (CAGE 88594)
Technical Specifications
ParameterValue
NSN4320-01-651-6947
Primary Part Number3400004
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDepartment of the Navy Naval Undersea Warfare Center New London Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-01-151-0678006466 INTERCHANGEABLE
Transformer,power
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
5985-01-166-4389 INTERCHANGEABLE
Lock Seal Assembly
5985-01-672-3210 INTERCHANGEABLE
Lock Seal Assembly
Cross-Reference Index
Part NumberManufacturer
RE-3400004 Lockheed Martin Sippican, Inc. Div Communication Division (USA)
3400004 Lockheed Martin Sippican, Inc. Div Communication Division (USA)
03400004 Lockheed Martin Sippican, Inc. Div Communication Division (USA)
3400004 PRIMARY Department of the Navy Naval Undersea Warfare Center New London Div (USA)
Related Parts
5950-01-151-0678INTERCHANGEABLE
TRANSFORMER,POWER
006466
5985-01-166-4389INTERCHANGEABLE
LOCK SEAL ASSEMBLY
5985-01-672-3210INTERCHANGEABLE
LOCK SEAL ASSEMBLY

Frequently Asked Questions

What is NSN 4320-01-651-6947?

NSN 4320-01-651-6947 is a Seal Assembly,shaft,spring Loade, manufactured by Department of the Navy Naval Undersea Warfare Center New London Div, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-651-6947?

NSN 4320-01-651-6947 has 4 cross-referenced part numbers: RE-3400004 (Lockheed Martin Sippican, Inc. Div Communication Division), 3400004 (Lockheed Martin Sippican, Inc. Div Communication Division), 03400004 (Lockheed Martin Sippican, Inc. Div Communication Division), 3400004 (Department of the Navy Naval Undersea Warfare Center New London Div).

What NSN replaces 4320-01-651-6947?

There are 3 known substitutes for 4320-01-651-6947: 5950-01-151-0678, 5985-01-166-4389, 5985-01-672-3210. Verify interchangeability with system specifications before substitution.

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