The Filter,respirator,air Filtering, cataloged under National Stock Number 4240-01-250-2291, 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 3 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-250-2291 |
| Primary Part Number | R191 |
| Item Name | Filter,respirator,air Filtering |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Square D Co Monroe Plant |
| Status | ACTIVE |
| Hazard Protection Feature | PAINT MIST |
| FSC Application Data | RESPIRATOR,AIR FILTERING |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-01-250-2291 is a Filter,respirator,air Filtering, manufactured by Square D Co Monroe Plant, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-01-250-2291 has 2 cross-referenced part numbers: R191 (American Optical Co), R191 (Square D Co Monroe Plant).
There are 4 known substitutes for 4240-01-250-2291: 3110-00-100-0316, 5905-00-180-8384, 2530-00-375-8809 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for R191: Hazard Protection Feature: PAINT MIST; Special Features: SOLE SOURCE REQUIRED BY STATUTE 6.302; USED ON AMERICAN OPTICAL MODEL R8000 RESPIRATOR; FSC Application Data: RESPIRATOR,AIR FILTERING; Criticality Code Justification: FEAT. 4 total characteristics are documented in the Federal Logistics Information System.