PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10155-05Seat,air Mask

Avox Systems Inc Dba Avox Systems Inc · NSN 4240-01-127-4432 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-127-4432 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-127-4432. Primary manufacturer part number: 10155-05.
Features
  • Seat,air Mask — FSC 4240
  • Reference Data and Literature: AF TO.14S5-11-11
  • General Characteristics Item Description: PART OF EXHALATION VALVE; USED ONREGULATOR ASSEMBLY P/N 800212-00
  • 1 verified cross-reference
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Seat,air Mask, cataloged under National Stock Number 4240-01-127-4432, 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 Avox Systems Inc Dba Avox Systems Inc. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-127-4432
Primary Part Number10155-05
Item NameSeat,air Mask
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Reference Data and LiteratureAF TO.14S5-11-11
General Characteristics Item DescriptionPART OF EXHALATION VALVE; USED ONREGULATOR ASSEMBLY P/N 800212-00
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-01-154-2079N516-50C INTERCHANGEABLE
Hose Assembly,nonmetallic
Coilhose Pneumatics, Inc.
Cross-Reference Index
Part NumberManufacturer
10155-05 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
4720-01-154-2079INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
N516-50C

Frequently Asked Questions

What is NSN 4240-01-127-4432?

NSN 4240-01-127-4432 is a Seat,air Mask, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-127-4432?

NSN 4240-01-127-4432 has 1 cross-referenced part number: 10155-05 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 4240-01-127-4432?

There is 1 known substitute for 4240-01-127-4432: 4720-01-154-2079. Verify interchangeability with system specifications before substitution.

What are the specifications of 10155-05?

Key specifications for 10155-05: Reference Data and Literature: AF TO.14S5-11-11; General Characteristics Item Description: PART OF EXHALATION VALVE; USED ONREGULATOR ASSEMBLY P/N 800212-00; End Item Identification: SELF-CONTAINED BREATHING APPARATUS,NSN 4240-00-109-3287. 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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