PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

805343Voicemitter,gas Mask

Mine Safety Appliances Company, Llc Dba M S a · NSN 4240-01-507-5252 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-507-5252 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-507-5252. Primary manufacturer part number: 805343.
Features
  • Voicemitter,gas Mask — FSC 4240
  • 1 verified cross-reference
  • Primary manufacturer: Mine Safety Appliances Company, Llc Dba M S a
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Voicemitter,gas Mask, cataloged under National Stock Number 4240-01-507-5252, 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 Mine Safety Appliances Company, Llc Dba M S a. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-507-5252
Primary Part Number805343
Item NameVoicemitter,gas Mask
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMine Safety Appliances Company, Llc Dba M S a
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-434-8765805343 INTERCHANGEABLE
Resistor,fixed,film
North Atlantic Industries, Inc. Dba North Atlantic Industries
Cross-Reference Index
Part NumberManufacturer
805343 Mine Safety Appliances Company, Llc Dba M S a (USA)
Related Parts
5905-00-434-8765INTERCHANGEABLE
RESISTOR,FIXED,FILM
805343

Frequently Asked Questions

What is NSN 4240-01-507-5252?

NSN 4240-01-507-5252 is a Voicemitter,gas Mask, manufactured by Mine Safety Appliances Company, Llc Dba M S a, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-507-5252?

NSN 4240-01-507-5252 has 1 cross-referenced part number: 805343 (Mine Safety Appliances Company, Llc Dba M S a).

What NSN replaces 4240-01-507-5252?

There is 1 known substitute for 4240-01-507-5252: 5905-00-434-8765. Verify interchangeability with system specifications before substitution.

What are the specifications of 805343?

Key specifications for 805343: End Item Identification: MILLENNIUM CHEMICAL BIOLOGICAL MASK, MINE SAFETY APPLIANCES COMPANY. 1 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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