The Cartridge,respirator,air Filteri, cataloged under National Stock Number 4240-01-245-3327, 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 Square D Co Monroe Plant. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-245-3327 |
| Primary Part Number | R53A |
| Item Name | Cartridge,respirator,air Filteri |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Square D Co Monroe Plant |
| Status | ACTIVE |
| Hazard Protection Feature | ORGANIC VAPORS |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-245-3327 is a Cartridge,respirator,air Filteri, manufactured by Square D Co Monroe Plant, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-245-3327 has 6 cross-referenced part numbers: 51026 (American Optical Co), R53A (American Optical Co), 51026 (Square D Co Monroe Plant), R53A (Square D Co Monroe Plant), 51026 (Aearo Company) and 1 more.
There are 8 known substitutes for 4240-01-245-3327: 9150-00-111-6266, 5340-00-290-4537, 5340-00-291-0374 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for R53A: Hazard Protection Feature: ORGANIC VAPORS; Criticality Code Justification: FEAT; Special Features: USED ON AMERICAN OPTICAL MODELS R/S4000,R/S5000,R/S6000 AND R/S7000 RESPIRATORS; NIOSH APPROVAL NO. TC-23C-343/344; SOLE SOURCE REQUIRED BY STATUTE 6.302. 3 total characteristics are documented in the Federal Logistics Information System.