PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

105831Bit,mouthpiece,breathing Apparat

Aqua Lung Co Ltd · NSN 4220-01-677-7138 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-677-7138 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-677-7138. Primary manufacturer part number: 105831.
Features
  • Bit,mouthpiece,breathing Apparat — FSC 4220
  • 1 verified cross-reference
  • Primary manufacturer: Aqua Lung Co Ltd
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bit,mouthpiece,breathing Apparat, cataloged under National Stock Number 4220-01-677-7138, 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 Aqua Lung Co Ltd. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-677-7138
Primary Part Number105831
Item NameBit,mouthpiece,breathing Apparat
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerAqua Lung Co Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-021-5524105831 INTERCHANGEABLE
Screw,cap,hexagon Head
Cummins Inc.
5365-00-103-9249105831-001 INTERCHANGEABLE
Ring,labyrinth Pack
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5320-00-478-14191058-31 INTERCHANGEABLE
Pin-Rivet
Rolls-Royce Controls and Data Services Limited
4720-00-812-5467105831 INTERCHANGEABLE
Hose Assembly,metallic
Senior Operations Llc Div Senior Aerospace Ssp
5995-00-859-1885105831 INTERCHANGEABLE
Cable,fle,ible
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
5950-01-332-3397 INTERCHANGEABLE
Transformer,power
4220-01-474-34481058-31 INTERCHANGEABLE
Bit,mouthpiece,breathing Apparat
Aqualung Usa, Inc
6515-01-500-6063105.831 INTERCHANGEABLE
Bone Surgery Set
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5340-01-548-3638 INTERCHANGEABLE
Bolt,lock
Cross-Reference Index
Part NumberManufacturer
105831 PRIMARY Aqua Lung Co Ltd (USA)
Related Parts
5305-00-021-5524INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
105831
5365-00-103-9249INTERCHANGEABLE
RING,LABYRINTH PACK
105831-001
5320-00-478-1419INTERCHANGEABLE
PIN-RIVET
1058-31
4720-00-812-5467INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
105831
5995-00-859-1885INTERCHANGEABLE
CABLE,FLE,IBLE
105831
5950-01-332-3397INTERCHANGEABLE
TRANSFORMER,POWER
4220-01-474-3448INTERCHANGEABLE
BIT,MOUTHPIECE,BREATHING APPARAT
1058-31
6515-01-500-6063INTERCHANGEABLE
BONE SURGERY SET
105.831
5340-01-548-3638INTERCHANGEABLE
BOLT,LOCK

Frequently Asked Questions

What is NSN 4220-01-677-7138?

NSN 4220-01-677-7138 is a Bit,mouthpiece,breathing Apparat, manufactured by Aqua Lung Co Ltd, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-677-7138?

NSN 4220-01-677-7138 has 1 cross-referenced part number: 105831 (Aqua Lung Co Ltd).

What NSN replaces 4220-01-677-7138?

There are 9 known substitutes for 4220-01-677-7138: 5305-00-021-5524, 5365-00-103-9249, 5320-00-478-1419 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 105831?

Key specifications for 105831: Part Name Assigned by Controlling Agency: MOUTHPIECE, BLACK; End Item Identification: EBIS-3000 & 4500 (EMERGENCY BREATHING INFLATION SYSTEM). 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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