PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

458310Breathing Apparatus,oxygen Gener

Mine Safety Appliances Company · NSN 4240-00-421-5798 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-00-421-5798 — this item is cataloged by the U.S. Government under National Stock Number 4240-00-421-5798. Primary manufacturer part number: 458310.
Features
  • Breathing Apparatus,oxygen Gener — FSC 4240
  • 1 verified cross-reference
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Breathing Apparatus,oxygen Gener, cataloged under National Stock Number 4240-00-421-5798, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-00-421-5798
Primary Part Number458310
Item NameBreathing Apparatus,oxygen Gener
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3040-00-566-6517458-310 INTERCHANGEABLE
Shaft,drive Gear
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5930-00-929-1576 INTERCHANGEABLE
Switch,thermostatic
Cross-Reference Index
Part NumberManufacturer
458310 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
3040-00-566-6517INTERCHANGEABLE
SHAFT,DRIVE GEAR
458-310
5930-00-929-1576INTERCHANGEABLE
SWITCH,THERMOSTATIC

Frequently Asked Questions

What is NSN 4240-00-421-5798?

NSN 4240-00-421-5798 is a Breathing Apparatus,oxygen Gener, manufactured by Mine Safety Appliances Company, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-00-421-5798?

NSN 4240-00-421-5798 has 1 cross-referenced part number: 458310 (Mine Safety Appliances Company).

What NSN replaces 4240-00-421-5798?

There are 2 known substitutes for 4240-00-421-5798: 3040-00-566-6517, 5930-00-929-1576. Verify interchangeability with system specifications before substitution.

What are the specifications of 458310?

Key specifications for 458310: Special Features: FOR ONE HOUR USE. 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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