PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100680Breathing Apparatus,self-Contain

Aqualung Usa, Inc · NSN 4240-01-556-8055 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-556-8055 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-556-8055. Primary manufacturer part number: 100680.
Features
  • Breathing Apparatus,self-Contain — FSC 4240
  • 1 verified cross-reference
  • 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 4240-01-556-8055, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-556-8055
Primary Part Number100680
Item NameBreathing Apparatus,self-Contain
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-503-4202100-680 INTERCHANGEABLE
Switch,pressure
Aerocontrolex Group, Inc. Dba Aero Fluid Products
6105-00-800-8418100680 INTERCHANGEABLE
Motor,direct Current
Meggitt North Hollywood Inc
5360-00-840-079810068-0 INTERCHANGEABLE
Spring,helical,extension
Keysight Technologies Inc
5840-00-850-8838100680 INTERCHANGEABLE
Indicator,azimuth-Range
L3harris Technologies, Inc Div Space & Airborne Systems
6240-00-878-1965 INTERCHANGEABLE
Lamp,incandescent
1670-00-925-5615100686 INTERCHANGEABLE
C0nversion Kit
Capewell Aerial Systems Llc
2590-00-994-7482100680 INTERCHANGEABLE
Cylinder,hydraulic,
Maremont Corp
4820-01-133-2291100680 INTERCHANGEABLE
Valve,butterfly
American Turbo Systems Inc
5915-01-158-2245733002-1 INTERCHANGEABLE
Filter,band Pass
Raytheon Company Div Rmd Strategic
4310-01-690-4773100680 INTERCHANGEABLE
Filter Element,intake Air Cleane
South-Tek Systems, Llc
Cross-Reference Index
Part NumberManufacturer
100680 PRIMARY Aqualung Usa, Inc (USA)
Related Parts
5930-00-503-4202INTERCHANGEABLE
SWITCH,PRESSURE
100-680
6105-00-800-8418INTERCHANGEABLE
MOTOR,DIRECT CURRENT
100680
5360-00-840-0798INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
10068-0
5840-00-850-8838INTERCHANGEABLE
INDICATOR,AZIMUTH-RANGE
100680
6240-00-878-1965INTERCHANGEABLE
LAMP,INCANDESCENT
1670-00-925-5615INTERCHANGEABLE
C0NVERSION KIT
100686
2590-00-994-7482INTERCHANGEABLE
CYLINDER,HYDRAULIC,
100680
4820-01-133-2291INTERCHANGEABLE
VALVE,BUTTERFLY
100680
5915-01-158-2245INTERCHANGEABLE
FILTER,BAND PASS
733002-1
4310-01-690-4773INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
100680

Frequently Asked Questions

What is NSN 4240-01-556-8055?

NSN 4240-01-556-8055 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 4240-01-556-8055?

NSN 4240-01-556-8055 has 1 cross-referenced part number: 100680 (Aqualung Usa, Inc).

What NSN replaces 4240-01-556-8055?

There are 10 known substitutes for 4240-01-556-8055: 5930-00-503-4202, 6105-00-800-8418, 5360-00-840-0798 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100680?

Key specifications for 100680: Special Features: AN EMERGENCY AIR SOURCE DESIGNED FOR USE BY HELICOPTER CREWS AFTER EMERGENCY WATER LANDINGS, THIS COMPACT SYSTEM WEIGHT IS LESS THAN 3 POUNDS, ALLOWS HANDS FREE OPTERATION AND FULL HEADMOVEMENT LBS; Part Name Assigned by Controlling Agency: DIVERS AQUAL LUNG HABD. 2 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