PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

03400004Lock Seal Assembly

Naval Inventory Control Point Mechanicsburg · NSN 5985-01-672-3210 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-672-3210 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-672-3210. Primary manufacturer part number: 03400004.
Features
  • Lock Seal Assembly — FSC 5985
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION
  • 2 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Lock Seal Assembly, cataloged under National Stock Number 5985-01-672-3210, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN5985-01-672-3210
Primary Part Number03400004
Item NameLock Seal Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsQUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5985-01-166-4389 INTERCHANGEABLE
Lock Seal Assembly
4320-01-651-69473400004 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Department of the Navy Naval Undersea Warfare Center New London Div
Cross-Reference Index
Part NumberManufacturer
03400004 Naval Inventory Control Point Mechanicsburg (USA)
03400004 Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
Related Parts
5985-01-166-4389INTERCHANGEABLE
LOCK SEAL ASSEMBLY
4320-01-651-6947INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
3400004

Frequently Asked Questions

What is NSN 5985-01-672-3210?

NSN 5985-01-672-3210 is a Lock Seal Assembly, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-672-3210?

NSN 5985-01-672-3210 has 2 cross-referenced part numbers: 03400004 (Naval Inventory Control Point Mechanicsburg), 03400004 (Allard Nazarian Group, Inc. Dba Granite State Manufacturing).

What NSN replaces 5985-01-672-3210?

There are 2 known substitutes for 5985-01-672-3210: 5985-01-166-4389, 4320-01-651-6947. Verify interchangeability with system specifications before substitution.

What are the specifications of 03400004?

Key specifications for 03400004: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION. 2 total characteristics are documented in the Federal Logistics Information System.

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