PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

166407Ballast,diving Equipment

Hii Unmanned Systems, Inc · NSN 4220-01-687-5819 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-687-5819 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-687-5819. Primary manufacturer part number: 166407.
Features
  • Ballast,diving Equipment — FSC 4220
  • 2 verified cross-references
  • Primary manufacturer: Hii Unmanned Systems, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ballast,diving Equipment, cataloged under National Stock Number 4220-01-687-5819, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Hii Unmanned Systems, Inc. This item has 2 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 NameBallast,diving Equipment
FSC / FSG4220 — No Item Name Available (FSG 42)
ManufacturersHii Unmanned Systems, Inc (CAGE 4Z5A9); Bluezone Group Pty Limited (CAGE Z0ZT6)
Technical Specifications
ParameterValue
NSN4220-01-687-5819
Primary Part Number166407
Item NameBallast,diving Equipment
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerHii Unmanned Systems, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5120-00-180-0873 INTERCHANGEABLE
Bar,wrecking
5330-01-136-1132166407 INTERCHANGEABLE
Gasket
Cummins Inc.
2530-01-504-25521373030105 INTERCHANGEABLE
Chamber,air Brake
Haldex Brake Products Corporation
Cross-Reference Index
Part NumberManufacturer
166407 PRIMARY Hii Unmanned Systems, Inc (USA)
166407 Bluezone Group Pty Limited (AUS)
Related Parts
5120-00-180-0873INTERCHANGEABLE
BAR,WRECKING
5330-01-136-1132INTERCHANGEABLE
GASKET
166407
2530-01-504-2552INTERCHANGEABLE
CHAMBER,AIR BRAKE
1373030105

Frequently Asked Questions

What is NSN 4220-01-687-5819?

NSN 4220-01-687-5819 is a Ballast,diving Equipment, manufactured by Hii Unmanned Systems, Inc, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-687-5819?

NSN 4220-01-687-5819 has 2 cross-referenced part numbers: 166407 (Hii Unmanned Systems, Inc), 166407 (Bluezone Group Pty Limited).

What NSN replaces 4220-01-687-5819?

There are 3 known substitutes for 4220-01-687-5819: 5120-00-180-0873, 5330-01-136-1132, 2530-01-504-2552. Verify interchangeability with system specifications before substitution.

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