PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74173Bag,breathing

Mine Safety Appliances Company · NSN 4240-00-815-6936 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-00-815-6936 — this item is cataloged by the U.S. Government under National Stock Number 4240-00-815-6936. Primary manufacturer part number: 74173.
Features
  • Bag,breathing — FSC 4240
  • General Characteristics Item Description: NEOPRENE BASE BODY; 15.250 IN. LG; TWO BREATHING TUBES INCLUDED IN
  • 2 verified cross-references
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bag,breathing, cataloged under National Stock Number 4240-00-815-6936, 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. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4240-00-815-6936
Primary Part Number74173
Item NameBag,breathing
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusCANCELLED
General Characteristics Item DescriptionNEOPRENE BASE BODY; 15.250 IN. LG; TWO BREATHING TUBES INCLUDED IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2530-00-422-9079 INTERCHANGEABLE
Horse Hair Packing,filter
5962-01-006-0180538899-1 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
74173 PRIMARY Mine Safety Appliances Company (USA)
S9300 F 921875 PRIMARY Naval Ship Systems Command (USA)
Related Parts
2530-00-422-9079INTERCHANGEABLE
HORSE HAIR PACKING,FILTER
5962-01-006-0180INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
538899-1

Frequently Asked Questions

What is NSN 4240-00-815-6936?

NSN 4240-00-815-6936 is a Bag,breathing, manufactured by Mine Safety Appliances Company, classified under FSC 4240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4240-00-815-6936?

NSN 4240-00-815-6936 has 2 cross-referenced part numbers: 74173 (Mine Safety Appliances Company), S9300 F 921875 (Naval Ship Systems Command).

What NSN replaces 4240-00-815-6936?

There are 2 known substitutes for 4240-00-815-6936: 2530-00-422-9079, 5962-01-006-0180. Verify interchangeability with system specifications before substitution.

What are the specifications of 74173?

Key specifications for 74173: General Characteristics Item Description: NEOPRENE BASE BODY; 15.250 IN. LG; TWO BREATHING TUBES INCLUDED IN; End Item Identification: NAVY TYPE A-3 OXYGEN BREATHING APPARATUS. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4240-00-815-6936 still in active supply?

NSN 4240-00-815-6936 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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