PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

93158Pad,air Mask

Mine Safety Appliances Company · NSN 4240-01-127-4429 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-127-4429 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-127-4429. Primary manufacturer part number: 93158.
Features
  • Pad,air Mask — FSC 4240
  • Reference Data and Literature: AF TO.14S5-16-1
  • General Characteristics Item Description: PART OF REGULATOR,PRESSURE DEMAND P/N 95166
  • 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 Pad,air Mask, cataloged under National Stock Number 4240-01-127-4429, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-127-4429
Primary Part Number93158
Item NamePad,air Mask
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Reference Data and LiteratureAF TO.14S5-16-1
General Characteristics Item DescriptionPART OF REGULATOR,PRESSURE DEMAND P/N 95166
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-012-0396120396 INTERCHANGEABLE
Washer,flat
Chrysler Realty Company Llc Dba Daimler Chrysler
4730-00-287-1130 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4810-00-326-445193158 INTERCHANGEABLE
Ring,valve Seat
Honeywell International Inc. Div Aerospace - Torrance
5305-00-719-478292666 INTERCHANGEABLE
Screw,cap,hexagon Head
Briggs and Stratton Corp
6020-01-581-2739 INTERCHANGEABLE
Cable Assembly,fibe
Cross-Reference Index
Part NumberManufacturer
93158 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
5310-00-012-0396INTERCHANGEABLE
WASHER,FLAT
120396
4730-00-287-1130INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4810-00-326-4451INTERCHANGEABLE
RING,VALVE SEAT
93158
5305-00-719-4782INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
92666
6020-01-581-2739INTERCHANGEABLE
CABLE ASSEMBLY,FIBE

Frequently Asked Questions

What is NSN 4240-01-127-4429?

NSN 4240-01-127-4429 is a Pad,air Mask, manufactured by Mine Safety Appliances Company, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-127-4429?

NSN 4240-01-127-4429 has 1 cross-referenced part number: 93158 (Mine Safety Appliances Company).

What NSN replaces 4240-01-127-4429?

There are 5 known substitutes for 4240-01-127-4429: 5310-00-012-0396, 4730-00-287-1130, 4810-00-326-4451 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 93158?

Key specifications for 93158: End Item Identification: SELF-CONTAINED BREATHING APPARATUS,NSN 4240-01-190-0455; Reference Data and Literature: AF TO.14S5-16-1; General Characteristics Item Description: PART OF REGULATOR,PRESSURE DEMAND P/N 95166. 3 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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