NSN 4240-01-452-9071 · NIIN 014529071 · Part number 306763
Mine Safety Appliances Company · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 55799
Government record, cited
NSN 4240-01-452-9071 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-452-9071. Manufacturer of record part number: 306763.
Also searched as4240-01-452-9071 ·
4240014529071 ·
NIIN 014529071 ·
01-452-9071 ·
FSC 4240 Safety and Rescue Equipment · CAGE 55799 · 306763
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 306763
Manufacturer: Mine Safety Appliances Company
General Description
The Mask,chemical-Biological, cataloged under National Stock Number 4240-01-452-9071, 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 18 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.
Technical Specifications
Parameter
Value
NSN
4240-01-452-9071
Primary Part Number
306763
Item Name
Mask,chemical-Biological
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Mine Safety Appliances Company
Status
ACTIVE
Filter Type
CANISTER
Mounting Position
LEFT CHEEK OR RIGHT CHEEK
Quantity
2
Microphone
NOT INCLUDED
Spectacle Usage Provision
NOT PROVIDED
Canister to Facepiece Attachment Method
DIRECT
Carrying Facility
CARRYING CASE
Facepiece Speaking Diaphragm
INCLUDED
Quick Disconnect Coupling Feature
NOT INCLUDED
Size Designation
MEDIUM
Canister Carrying Harness
NOT INCLUDED
Face Cover Type
FACEPIECE
Protection for Which Filter Is Designed
CHEMICAL RESISTANT
Material
PLASTIC LENS
Material
RUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED
Material
PLASTIC POLYAMIDE NYLON CARRYING CASE
Canister Manufacturer Symbol
CB
Particulate Filter
INCLUDED
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL F — Mutilate — Cut
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Related Parts in Fire Fighting, Rescue, and Safety Equipment
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Frequently Asked Questions
What is NSN 4240-01-452-9071?
NSN 4240-01-452-9071 is a Mask,chemical-Biological, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-452-9071?
NSN 4240-01-452-9071 has 1 manufacturer part number on file: 306763 (Mine Safety Appliances Company).
What are the specifications of 306763?
Key specifications for 306763: Filter Type: CANISTER; Mounting Position: LEFT CHEEK OR RIGHT CHEEK; Quantity: 2; Microphone: NOT INCLUDED. 18 specifications are documented in the U.S. Government catalog.
Is NSN 4240-01-452-9071 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 4240-01-452-9071?
NSN 4240-01-452-9071 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.