PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

71051/1Mask System,chemica

Avon Protection Systems Incorporated Dba Avon Protection Systems Inc · NSN 4240-01-512-4436 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-512-4436 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-512-4436. Primary manufacturer part number: 71051/1.
Features
  • Mask System,chemica — FSC 4240
  • 3 verified cross-references
  • Primary manufacturer: Avon Protection Systems Incorporated Dba Avon Protection Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mask System,chemica, cataloged under National Stock Number 4240-01-512-4436, 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 Avon Protection Systems Incorporated Dba Avon Protection Systems Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-512-4436
Primary Part Number71051/1
Item NameMask System,chemica
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerAvon Protection Systems Incorporated Dba Avon Protection Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1630-00-011-98357105-11 INTERCHANGEABLE
Port,valve
Woodward Hrt, Inc. Dba Woodward Hrt Inc
1650-00-286-2358710511 INTERCHANGEABLE
Wobbler,fixed,const
Hamilton Sundstrand Corporation
5340-00-598-4393710511 INTERCHANGEABLE
Clamp,loop
Unison Industries Llc
6850-01-261-6064EP-S CARTRIDGE INTERCHANGEABLE
Toner,indirect Electrostatic Pro
Tei Imaging Solutions, Inc
Cross-Reference Index
Part NumberManufacturer
71051/1 PRIMARY Avon Protection Systems Incorporated Dba Avon Protection Systems Inc (USA)
5-1-3527-30 Edgewood Chemical Biological Center Ecbc (USA)
4240PL2220273 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
1630-00-011-9835INTERCHANGEABLE
PORT,VALVE
7105-11
1650-00-286-2358INTERCHANGEABLE
WOBBLER,FIXED,CONST
710511
5340-00-598-4393INTERCHANGEABLE
CLAMP,LOOP
710511
6850-01-261-6064INTERCHANGEABLE
TONER,INDIRECT ELECTROSTATIC PRO
EP-S CARTRIDGE

Frequently Asked Questions

What is NSN 4240-01-512-4436?

NSN 4240-01-512-4436 is a Mask System,chemica, manufactured by Avon Protection Systems Incorporated Dba Avon Protection Systems Inc, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-512-4436?

NSN 4240-01-512-4436 has 3 cross-referenced part numbers: 71051/1 (Avon Protection Systems Incorporated Dba Avon Protection Systems Inc), 5-1-3527-30 (Edgewood Chemical Biological Center Ecbc), 4240PL2220273 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 4240-01-512-4436?

There are 4 known substitutes for 4240-01-512-4436: 1630-00-011-9835, 1650-00-286-2358, 5340-00-598-4393 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 71051/1?

Key specifications for 71051/1: End Item Identification: GAS MASKS. 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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