NSN 4240-01-394-7689 · NIIN 013947689 · Part number 495545
Mine Safety Appliances Company · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 55799
Government record, cited
NSN 4240-01-394-7689 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-394-7689. Manufacturer of record part number: 495545.
Also searched as4240-01-394-7689 ·
4240013947689 ·
NIIN 013947689 ·
01-394-7689 ·
FSC 4240 Safety and Rescue Equipment · CAGE 55799 · 495545
Nearby stock numbers← 4240-01-394-7646 Foam Kit, Left Tank
·
4240-01-394-7690 →
Features
Adapter,breathing Apparatus — FSC 4240
General Characteristics Item Description: REPLACEMENT PART FOR P/N 495891 COMPLETE CARTRIDGE ADAPTER ASSEMBLY; COMFO ELITE UNO TC-21C 593 AND TC-21C 594 NIOSH/MSHA APPROVAL
Material: PLASTIC
1 manufacturer part number on file
Manufacturer of record: Mine Safety Appliances Company
Identification
NSN: 4240-01-394-7689
NIIN: 013947689
FSC: 4240 — Safety and Rescue Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 495545
Manufacturer: Mine Safety Appliances Company
General Description
The Adapter,breathing Apparatus, cataloged under National Stock Number 4240-01-394-7689, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Mine Safety Appliances Company. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4240-01-394-7689
Primary Part Number
495545
Item Name
Adapter,breathing Apparatus
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Mine Safety Appliances Company
Status
ACTIVE
General Characteristics Item Description
REPLACEMENT PART FOR P/N 495891 COMPLETE CARTRIDGE ADAPTER ASSEMBLY; COMFO ELITE UNO TC-21C 593 AND TC-21C 594 NIOSH/MSHA APPROVAL
Material
PLASTIC
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Frequently Asked Questions
What is NSN 4240-01-394-7689?
NSN 4240-01-394-7689 is a Adapter,breathing Apparatus, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-394-7689?
NSN 4240-01-394-7689 has 1 manufacturer part number on file: 495545 (Mine Safety Appliances Company).
What are the specifications of 495545?
Key specifications for 495545: General Characteristics Item Description: REPLACEMENT PART FOR P/N 495891 COMPLETE CARTRIDGE ADAPTER ASSEMBLY; COMFO ELITE UNO TC-21C 593 AND TC-21C 594 NIOSH/MSHA APPROVAL; Material: PLASTIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4240-01-394-7689 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.