PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

108420Breathing Apparatus,self-Contain

Aqualung Usa, Inc · NSN 4240-01-562-4738 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-562-4738 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-562-4738. Primary manufacturer part number: 108420.
Features
  • Breathing Apparatus,self-Contain — FSC 4240
  • 3 verified cross-references
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Breathing Apparatus,self-Contain, cataloged under National Stock Number 4240-01-562-4738, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Aqualung Usa, Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBreathing Apparatus,self-Contain
FSC / FSG4240 — No Item Name Available (FSG 42)
ManufacturersHouse of Scuba, Inc. Dba House of Scuba Inc (CAGE 5DS05); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Aqualung Usa, Inc (CAGE 94120)
Technical Specifications
ParameterValue
NSN4240-01-562-4738
Primary Part Number108420
Item NameBreathing Apparatus,self-Contain
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-033-4725 INTERCHANGEABLE
Bearing Ball Journa
3110-00-100-0228 INTERCHANGEABLE
Cone and Rollers,tapered Roller
3120-00-354-0658 INTERCHANGEABLE
Bearing,sleeve
1680-00-565-7541 INTERCHANGEABLE
Control Box Assy,ac
4810-00-601-1070108420 INTERCHANGEABLE
Valve Assembly
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5342-01-735-4797108420-1 INTERCHANGEABLE
Bracket,double Angle
Naval Surface Warfare Center Dahlgren Div
5342-01-735-4818108420-2 INTERCHANGEABLE
Bracket,double Angle
Naval Surface Warfare Center Dahlgren Div
Cross-Reference Index
Part NumberManufacturer
108420 House of Scuba, Inc. Dba House of Scuba Inc (USA)
1586AS451-1 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
108420 PRIMARY Aqualung Usa, Inc (USA)
Related Parts
3110-00-033-4725INTERCHANGEABLE
BEARING BALL JOURNA
3110-00-100-0228INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3120-00-354-0658INTERCHANGEABLE
BEARING,SLEEVE
1680-00-565-7541INTERCHANGEABLE
CONTROL BOX ASSY,AC
4810-00-601-1070INTERCHANGEABLE
VALVE ASSEMBLY
108420
5342-01-735-4797INTERCHANGEABLE
BRACKET,DOUBLE ANGLE
108420-1
5342-01-735-4818INTERCHANGEABLE
BRACKET,DOUBLE ANGLE
108420-2

Frequently Asked Questions

What is NSN 4240-01-562-4738?

NSN 4240-01-562-4738 is a Breathing Apparatus,self-Contain, manufactured by Aqualung Usa, Inc, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-562-4738?

NSN 4240-01-562-4738 has 3 cross-referenced part numbers: 108420 (House of Scuba, Inc. Dba House of Scuba Inc), 1586AS451-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 108420 (Aqualung Usa, Inc).

What NSN replaces 4240-01-562-4738?

There are 7 known substitutes for 4240-01-562-4738: 3110-00-033-4725, 3110-00-100-0228, 3120-00-354-0658 and 4 more. Verify interchangeability with system specifications before substitution.

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