The Mask,chemical-Biological, cataloged under National Stock Number 4240-01-175-3443, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-175-3443 |
| Primary Part Number | 864-01-1 |
| Item Name | Mask,chemical-Biological |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Material | PLASTIC LENS |
| Quantity | 2 |
| Quick Disconnect Coupling Feature | NOT INCLUDED |
| Protection for Which Filter Is Designed | CHEMICAL RESISTANT |
| Spectacle Usage Provision | NOT PROVIDED |
| Canister Carrying Harness | NOT INCLUDED |
| Carrying Facility | CARRYING CASE |
| Particulate Filter | INCLUDED |
| Microphone | NOT INCLUDED |
| Filter Type | CANISTER |
| Size Designation | SMALL |
| Face Cover Type | FACEPIECE |
| Facepiece Speaking Diaphragm | INCLUDED |
| Material | RUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Position | LEFT CHEEK OR RIGHT CHEEK |
| Canister Manufacturer Symbol | CB |
| Material | PLASTIC POLYAMIDE NYLON CARRYING CASE |
| Canister to Facepiece Attachment Method | DIRECT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-175-3443 is a Mask,chemical-Biological, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-175-3443 has 2 cross-referenced part numbers: MCU-2P (Warner Robins Air Logistics Center), 864-01-1 (Avox Systems Inc Dba Avox Systems Inc).
There are 2 known substitutes for 4240-01-175-3443: 4240-01-175-3444, 4240-01-175-3445. Verify interchangeability with system specifications before substitution.
Key specifications for 864-01-1: Material: PLASTIC LENS; Quantity: 2; Quick Disconnect Coupling Feature: NOT INCLUDED; Protection for Which Filter Is Designed: CHEMICAL RESISTANT. 19 total characteristics are documented in the Federal Logistics Information System.