The Respirator,air Filtering, cataloged under National Stock Number 4240-01-495-3094, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Square D Co Monroe Plant. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-495-3094 |
| Primary Part Number | PR5500 |
| Item Name | Respirator,air Filtering |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Square D Co Monroe Plant |
| Status | ACTIVE |
| Mask Filter Quantity | 2 |
| Filter Type | FILTER PAD |
| Mask Type | HALF FACEPIECE |
| Material Type | ELASTIC |
| Supplementary Features | GENERIC NSN |
| Approval Designator | ERR-060 |
| Accessory Components and Quantity | DUAL FILTER RECEPTACLE TYPE FURNISHED WITH 100 FILTERS |
| Departure From Cited Designator | AS MODIFIED BY ACCESSORY COMPONENTS AND QUANTITY AND SPECIAL FEATURES |
| Adjustability | ADJUSTABLE |
| Nondefinitive Spec/std Data | 1 TYPE |
| Exhaust Valve | INCLUDED |
| Furnished Filter Type and Quantity | 2 FILTER PAD |
| Head Harness | INCLUDED |
| Protection for Which Filter Is Designed | METAL FUMES |
| Filter Replaceability | REPLACEABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PR5500 PRIMARY | Square D Co Monroe Plant (USA) |
NSN 4240-01-495-3094 is a Respirator,air Filtering, manufactured by Square D Co Monroe Plant, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-495-3094 has 1 manufacturer part number on file: PR5500 (Square D Co Monroe Plant).
Key specifications for PR5500: Mask Filter Quantity: 2; Filter Type: FILTER PAD; Mask Type: HALF FACEPIECE; Material Type: ELASTIC. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.