The Mask,chemical-Biological, cataloged under National Stock Number 4240-01-327-4149, 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 Mine Safety Appliances Company. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-327-4149 |
| Primary Part Number | 88115001-8 |
| Item Name | Mask,chemical-Biological |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Carrier Position Type | TWO POSITION |
| Filter Type | CANISTER |
| Mounting Position | LEFT CHEEK OR RIGHT CHEEK |
| Quantity | 2 |
| Microphone | NOT INCLUDED |
| Spectacle Usage Provision | PROVIDED |
| Canister to Facepiece Attachment Method | DIRECT |
| Carrying Facility | CARRIER |
| Accessory Components and Quantity | 4240011192315-CHEM BIOL CANISTER-2 EA,4240012244196-CARRIER ASSY-1 EA,4240012244195-OUTSERT ASSY-1 EA,4240008035839-CHEMICAL WATERPROOF BAG-1 EA |
| Facepiece Speaking Diaphragm | INCLUDED |
| Carrying Position for Which Designed | LEFT SIDE |
| Quick Disconnect Coupling Feature | NOT INCLUDED |
| Size Designation | MEDIUM |
| Canister Carrying Harness | INCLUDED |
| Face Cover Type | FACEPIECE |
| Protection for Which Filter Is Designed | BIOLOGICAL ORGANISMS AND WAR GASES |
| Filter Replaceability | REPLACEABLE |
| Material | PLASTIC LENS |
| Material | RUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED |
| Canister Manufacturer Symbol | MSA |
| Particulate Filter | NOT INCLUDED |
| Carrier Wearing Position | BELT OR LEFT SIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 88115001-8 | Mine Safety Appliances Company (USA) |
| Reference | Meaning |
|---|---|
| MCU-2A/P MED (N) | 5/1 Secondary reference U.S. Government activity |
| 88115001-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-01-327-4149 is a Mask,chemical-Biological, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-327-4149 has 1 manufacturer part number on file: 88115001-8 (Mine Safety Appliances Company).
Key specifications for 88115001-8: Carrier Position Type: TWO POSITION; Filter Type: CANISTER; Mounting Position: LEFT CHEEK OR RIGHT CHEEK; Quantity: 2. 22 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.
NSN 4240-01-327-4149 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.